The Mad Scientist

"The Mad Scientist" is the upcoming sixteenth episode of the third season, and the one-hundred-seventeenth episode of The Loud House.

Plot
Lisa gets invited to work at an institute and get away from her crazy family.

Synopsis
''' WARNING: This is a leaked episode, so if you don't want to be spoiled, we advise you not to read the synopsis. If you do, it's your risk.''' 

Lisa is explaining to a few scientists about Einstein's theory of time travel through wormholes. She explains that she's close to figuring out how to solve the theory, but is constantly getting interrupted by her siblings asking her for answers. When Lisa explains that she's having a hard time doing research because of her siblings' interference, one of the scientists, Dr. J, asks her if she wants to visit the science institute, since she can continue her studies without interruption, and Lisa accepts.

At the science institute, Lisa is given the tour of the institute, and gets to continue her studies in the institute's research lab. Happy with what she's seeing, Lisa breaks out in song about all the wonders of the lab. After explaining to the scientists Einstein's theory of time travel, Lisa prepares to head back home, but Dr. J offers her the option of staying at the institute full-time, and Lisa take this into consideration. Lisa calls up her parents via video chat, and is explaining her desire to stay at the institute, much to the aghast of her family. Lisa, expecting this kind of reaction, shows them a chart explaining that 97% of her physical makeup consists of scientific pursuit, whereas her emotional attachment to her family is a measly 1%. Thinking Lisa is "independent" enough, Rita and Lynn Sr. agree to let Lisa stay at the institute.

While doing work, Lisa gets hungry, and decides to get some dinner. Expecting a meal, Lisa is disappointed to learn that her dinner is a gelatinous cube consisting of vitamins for necessary brain efficiency, and ice cream that is injected into her body instead of eating actual ice cream. Later, Lisa wants to watch The Dream Boat with her colleagues, but due to having no interest in the show, they abandon her. In her room, Lisa is unpacking her bag, when she comes across a jar of peanut butter mixed with jelly with a note attached. Seeing that it's from Lincoln, since he would make her PB&J sandwiches before bedtime, Lisa tries to make a PB&J sandwich, but is unable to do so. Getting ready for bed, Lisa is unable to zip her pajamas on, since Leni would do that for her. When Lisa lies in bed, she's unable to fall asleep, and remembers how Lori would read a story to Lily that would not only help her fall asleep, but Lisa would as well. While sleeping, Lisa has a nightmare and tries to warn her parents, but, being at the institute, are not there. Lisa (having to resort sleeping with a model skeleton) begins crying, realizing that it could only mean one thing.

Calling up her family again the next day, Lisa takes back what she said about her physical makeup, and shows them an updated version of her chart, where her emotional attachment to her family exceeds her scientific pursuit, meaning that she misses her family, and expresses her desire to come back. The family, happy to hear the good news, encourage her to come back home, but Lisa explains that if she were to return home now, her reputation will be damaged. When Leni brings up the idea that Lisa should travel back in time to before she ever went to the institute, Lisa, realizing that she solved Einstein's theory of time travel, attempts to do so. After getting her time machine ready, Lisa activates it to send her to yesterday, and portal successfully opens up. Jumping into the portal, Lisa arrives to the day before, just before Dr. J offers the chance to visit the institute. When Dr. J asks Lisa about this opportunity, Lisa politely declines, saying that she's perfectly fine at home. Lisa, while admittedly annoyed by some of her siblings' antics, is more than happy to be "home, sweet home."

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
 * Brian Stepanek as Lynn Sr. / Lab Scientist / Dream Boat TV Announcer / Time Machine
 * Jill Talley as Rita / Robot
 * Sirena Irwin as Dr. J

Accidental release
Like "Future Tense", "Head Poet's Anxiety", and "Tripped!", this episode was leaked online before it premiered on TV.

Song

 * "This Lab is Where I Belong"

Trivia

 * The title of this episode is a double entendre: while Lisa is classified as a mad scientist, she's also being driven mad by the antics of her family.
 * This is the fourth episode of The Loud House to get leaked, the first three being "Future Tense", "Head Poet's Anxiety", and "Tripped!".
 * Unlike those three, this episode wasn't leaked onto Amazon, iTunes, or Google Play.
 * Lincoln appears on the title card as a bubble in the beaker on the lower right corner.
 * The premise of this episode is exactly the same as "Garage Banned": both episodes involve a family member leaving home to get away from the craziness, and appears to enjoy it, only to regret it when they find out they miss their family.
 * This episode reveals that time travel exists in this show's universe.
 * This is the first episode where the family brings up the fact that while Lisa may be a genius, she's only 4.
 * This episode reveals that despite her genius, Lisa is incapable of making a peanut better and jelly sandwich.
 * This could be referencing the fact that in "Baby Steps", Lisa is forbidden from holding a butter knife.
 * This episode was originally scheduled to air on April 27, 2018.
 * According to this episode, Lisa's physical makeup was 97% scientific pursuit, 2% west coast rap, and 1% emotional attachment. When Lisa began to miss her family, he physical makeup is now 50% emotional attachment, 48% scientific pursuit, and west coast rap stayed at 2%.
 * According to Lola, she doesn't know what an institute is.
 * The title card music for "Read Aloud" can be heard when Lisa heads to the cafeteria.

Errors

 * When Lisa has the flashback of Leni zipping up her pajamas, Leni only has two pairs of eyelashes.