One Flu Over the Loud House

"One Flu Over the Loud House" is the fiftieth episode of the first season of The Loud House.

Plot
A flu breaks out in the Loud House, and those infected behave like zombies. Those not sick attempt to escape, before they fall victim to the outbreak.

Synopsis
Lincoln wakes up late on a Saturday, and is surprised to hear nothing at all. He walks out of his room to find the upstairs hallway is a wreck. He sees Lana and Lola come out of their room looking sick, and he tries to back away, only to find a sick Lori and Lynn. He continues to back away, only to be pulled into Lisa's room. He finds Leni, Luna, Luan, Lucy and Lisa, who take his temperature to make sure he isn't sick.

When they know he isn't sick, they explain what happened. Lori got the flu and sneezed on Lynn's basketball, causing her to get infected. Lynn went and drank orange juice from the carton so when Lana drank the juice, she got infected due to the germs Lynn had previously released into the carton. Lana sneezed on Lola, causing her to get infected, and the rest were taking shelter in Lisa's room to avoid the disease.

Lincoln calls Clyde and tells him the flu is invading the house. Clyde mourns when he hears Lori got the flu. Lincoln lets Clyde know six of them are fine, only for Luan to sneeze. They assume Luan is infected. When she says she's "snot" (pun intended), she becomes a "zombie" and they throw her out of the room.

Lincoln says they need to leave the house, but Leni says that they should help her family. Everyone sides with Lincoln and grabs a gun filled with chicken soup, except for Leni who does not believe in the flu. They leave and before they make it downstairs, Luna gets cornered and eventually infected. They make it downstairs, knowing Luna got infected and thinking Lucy also got infected. They try to leave through the front door, but the pets are outside and infected. They try the back door, but find more infected siblings. They head to Mom and Dad's room and find them infected, but they also find that Lucy wasn't infected.

Lincoln tries contacting Clyde, but his walkie-talkie is dead. They sneak into Lisa's room for batteries and see Lily is infected too. Lily sends a snot bubble at them, but it misses and it goes out the window. They recharge the walkie-talkie and make it to the kitchen. When Lincoln attempts to open the door, the snot bubble flies in through an open window and infects Lucy who infects both the doorknob and Lisa.

Leni says she's going to stay behind and help the others, allowing Lincoln to escape. Unfortunately, Luna is about to sneeze on Leni but Lincoln jumps in front of her and gets himself infected. He says Leni deserved to be healthy more than he did, only to end up sneezing on her, thus infecting them both.

Now that every member of the Loud family is sick, Clyde, wearing a hazmat suit, brings his food into the living room, which the Louds quickly devour.

Cast

 * Collin Dean as Lincoln
 * Catherine Taber as Lori
 * Liliana Mumy as Leni
 * Nika Futterman as Luna
 * Cristina Pucelli as Luan
 * Jessica DiCicco as Lynn / Lucy
 * Grey Griffin as Lana / Lola / Lily
 * Lara Jill Miller as Lisa
 * Caleel Harris as Clyde
 * Jill Talley as Rita
 * Brian Stepanek as Lynn Sr.

Trivia

 * This is the first time Lori appears without any lines of dialogue.
 * Episode 25 of Season 1 is also the first episode where Lynn does not have any lines of dialogue in either of the segments she appears in.
 * As of this episode, all ten of Lincoln's sisters have made at least one non-speaking appearance in an episode. This also means that Lincoln himself is now the only member of The Loud Family to have dialogue in every episode he appears in so far.
 * This is the second episode after "The Price of Admission" to premiere on a weekend morning.
 * This is the second episode to have a Halloween-style vibe to it, after "The Price of Admission".
 * This is the second episode where Lincoln and his sisters act like zombies, the first was "Cereal Offender".
 * This premiered as a part of Nickelodeon's Halloween episodes.
 * Despite this, however, it appears every other day on TV, rather than just Halloween, itself.
 * This is the first time Clyde speaks to the viewers.
 * Rita's face is shown once again, although only her mouth is shown. Lynn Sr.'s full body is shown in the shadow again.
 * This episode marks the first time a character gets sick.
 * Leni is the only Loud sibling who didn't believe in the zombie flu infection.
 * Clyde is the only character in this episode who did not get infected.
 * Lori was the first one to get infected and she was the one who made everyone in the house sick one by one because her sickness was spreading everywhere as the flu passes on each one of them from each other making them all infected.
 * Lincoln and Leni salute with their left hands instead of the right, which is the more typical one used in the military.
 * Lincoln says "It tastes like chicken soup", which is similar to a line that Lana said in "Linc or Swim".
 * Although Lori, Lynn, and Lynn Sr. were casted in the end credits, they don't have any dialogue in this episode despite their moaning and Lori and Lynn's sneezes.
 * Mainly the reason why Lori and Lynn did not had any lines in the episode because they were the first two to get infected and Lynn Sr. did not had any lines because he just became sick right away off screen without it showing in the flashback on how he got it.
 * The production music are Search Party 1 by Harry Bluestone and Emil Cadkin, House of Horror by Larry Hochman, and Dramatic Climax by Mike Sunderland.
 * This episode was shown only once in Poland for unknown reasons.
 * The order in which the Louds get hit and how they get infected with the zombie flu:
 * Lori - Unknown. (Patient Zero; probably got it because it was the start of flu season for the house)
 * Lynn - Touched the infected basketball that was sneezed on by Lori.
 * Lana - Drank the infected orange juice that was drank by Lynn.
 * Lola - Got coughed on by Lana.
 * Luan - Unknown. (Possibly got it from Lola, without her knowing it)
 * Luna - Got coughed on by Luan and Lola.
 * The pets: Charles, Cliff, Geo, Walt - Unknown. (Possibly got it from Lynn Sr.)
 * Lynn Sr. - Unknown. (Possibly got it from Rita)
 * Rita - Unknown. (Possibly got it from Lori)
 * Lily - Unknown. (Possibly got it from Charles)
 * Lucy - Got infected by Lily's snot bubble.
 * Lisa - Got sneezed on by Lucy.
 * Lincoln - Got sneezed on by Luna.
 * Leni - Got sneezed on by Lincoln.
 * It could be possible that Rita, Lynn Sr., the pets, and Lily got the flu during the same time Lori, Lynn, Lana, and Lola got it.
 * It is unknown why the sick family members tried to get the others sick.
 * It's probably because the sickness damaged their brains, which would also explain why they were acting like zombies when they were sick.
 * Everyone got cured back to health after this episode. It's most likely because the flu wore off in one week later, which was probably how long the flu lasted for them.
 * This episode most likely takes place in the fall, because the flu is more common in aforementioned season.
 * The Loud family probably didn't get their flu shots, because in order for the flu to take effect almost instantly, you've needed to not get your flu shot for a long time.
 * Moral: Sick people are still people.

Errors

 * It never occurred to Lisa to make a flu shot to keep Lincoln & the rest of the family healthy despite her high intelligence and having experience with medicine in "Making the Grade". It's possible she didn't have time to make one considering Lincoln and the gang just wanted to leave for safety.
 * While it is true someone who is sick can pass on the sickness to someone else with their germs, it is not possible for someone to become infected immediately. The infection will take effect within a day or more, if the victim does not care for themselves quick enough.
 * When Rita uses the laser thermometer to check Lori's temperature in the flashback, she says she has a fever, but the thermometer clearly says "98.6°", the same degree Leni got from Lincoln, which is technically not a fever, but normal and nearly close to one. A fever is generally 100° or higher.
 * Leni was next to Luan in one scene, but in the next scene, she is next to Luna.
 * When Lana gets infected, her eyelashes are missing. The same thing happens to Lola when she got infected.
 * When Lincoln says 'That's the crisis?', the closed-captions say 'That's the food crisis?'.
 * When Lincoln says 'Looks like we're going up. Loud, you take point!', the closed-captions say 'Looks like we're going up. Loud, you take front!'.
 * From the scene where Luna is being attacked by Lola and Luan until the scene where she walks after being infected, her left paperclip earring is missing.
 * When Luna gets infected, she starts walking from the bathroom door. However, when Lincoln, Leni, Lucy and Lisa act as zombies, she was coming from the opposite side of the hall.
 * When Lincoln, Leni, Lucy and Lisa act as zombies, Leni walks to Lincoln's room direction. However, when Lincoln calls them to go downstairs, Leni is coming from the opposite direction.
 * Geo was infected with the other pets but was still in his ball when being infected, it doesn't occur how Geo got infected when he was in his ball.
 * It could be that he got infected by the time he got out of his ball before.
 * When Lincoln, Leni and Lisa run to escape through the backdoor, they encounter Lola and Lynn exiting the kitchen. But they didn't go downstairs and if they did so, there would not have any entrance to the kitchen apart from the one Lincoln, Leni and Lisa were about to go in.
 * Lincoln left his gun in the Loud parents room, but somehow he has it when Lily stands up in Lisa's room.
 * When the snot bubble is going towards Lincoln, Leni, Lucy and Lisa, Lincoln doesn't have his gun. But when they duck and stand up, his gun suddenly appears.
 * When Lily stands up in Lisa's room, the background behind her was the hall and the room' doors. When Lily sneezes the snot bubble, the background behind her was Lisa's room wallpaper. But when Lily crawls to the bottle, the background behind her was the hall and the room's doors again.
 * When Lincoln and the sisters are going downstairs the second time, Lincoln's gun is pointing to the right (viewer's left). When they get to the stairs' foot, it was pointing to the left. But when they enter the kitchen, it was pointing to the right again.
 * Lincoln's gun disappears when Lucy sneezes on the doorknob.
 * When the infected sisters enter the kitchen, one of the chairs disappears.
 * When Lisa shoots at Lola, the chicken soup goes through the car's windshield.
 * When Luna is being cornered by Lola and Luan, Lincoln shoots ten times but only two "chicken soup projectiles" are seen.
 * The same thing happens when Luna shoots Luan.
 * Lola crashed her car by the hall where the bathroom' door is, but it was nowhere to be seen when Luna is being cornered by Lola and Luan.
 * During Luna's first line, the captions say "Lola".
 * When Lincoln sees the upstairs hallway for the first time is a wreck, but later when Lincoln and his sisters come out from Lisa and Lily's room, the hallway is somehow clean.
 * When the Louds eat the food Clyde brought them, Lincoln disappears.
 * In the Hebrew version, the word RUN was reversed on the hallway.
 * In the Latin American version, Lincoln says "112 square feet" instead of "1200 square feet".
 * In the same dub, Clyde's nickname "Safe Haven" is mistakenly translated as "Haven a salvo", when Haven in Spanish is "Refugio".

Running Gags

 * Someone getting infected.
 * Lincoln assuming Lucy is infected, and Lucy saying it's how she always looks.
 * Leni wanting to make her family feel better.
 * Lincoln holding up a gun and Leni intervening.
 * Clyde making food for the sick Louds.

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