|Season 5, episode 1|
|Air date||September 17, 1991|
|Previous||Rock the Cradle|
"Michelle, go to sleep. You have a big day tomorrow." Those are the words Michelle is telling herself as she tries to get some shut-eye on the last night of summer vacation, or what's left of it. Joey comes into her room and plays the harmonica in an attempt to get her to go to sleep. But she's too excited about the first day of school and her first day of kindergarten (see both below) to get any sleep.
Jesse is back home at the Tanners' house around 3:00 a.m. from the tour that Jesse and the Rippers went on over the summer, by waking up everyone which he didn't notice are sleeping in their rooms (Danny, Joey, D.J, Stephanie, Michelle, and even his wife Becky), and an ultrasound shows that Becky is carrying twins. While that thrills Becky, the same can't be said for Jesse, who feels afraid of what is now a double responsibility that awaits him, because he does not want to mess up in any way as a father. The family helps him cope with that fear, and Jesse is happy about Becky carrying twins. Jesse and Becky have told Dr. Sinclair that they want to wait until birth to know the sex of the babies.
Meanwhile, as the new school year starts, D.J. is starting high school, and Kimmy Gibbler's outfit meets with Danny's approval (as well as the studio audience's). But when he notices D.J.'s dress, he says she looks sexy (eliciting a "WHOO!" from the audience).
Stephanie is nervous about entering 4th grade, until she meets her new teacher, Mr. Lowry, who she now has a crush on and says is a "major babe".
Michelle is worried about what kindergarten will be like, as she does not know if her new classmates will like her (much to the groans of the audience). Joey tells her that on his first day of school, he did the Bullwinkle impression, and it worked. They laughed and instantly became his friends.
As Michelle now attends the same school as Stephanie and didn't know it would be so big and huge when they got there, she is scared and lost on her first day, so she goes to the other side of the school to pay Stephanie a visit. Stephanie takes Michelle back to her classroom, where Michelle befriends Teddy, one of her new classmates.
Back home, Comet has eaten all his dog food, and as Danny and Joey watch, he actually runs over with his dog dish and drops it into the sink (much to the applause of the audience). When Jesse comes home, they congratulate him on having twins, but he is still in so much shock over the news that he has visions of their "evil twins". Danny's evil twin Manny has his shirt unbuttoned almost down to his navel with necklaces in full view, and a little dirt on his face. He remarks that his goody-good twin is a "Lysol-loving hug freak" who lives in a bubble. Meanwhile, Joey's evil twin has hair and a voice like Joe Pesci who still thinks the goody-good Joey still wears Scooby-Doo pajamas, to which the real deal Joey says that he only kept the bottoms. The real deals and their "twins" start arguing to the point that Jesse finally has to say, "Alright guys, just STOP!", which causes the doubles to disappear, and the guys suggest he get some sleep. At first, Jesse says that he does not need sleep, but when Comet runs by with his "twin", he changes his mind and decides that a little nap would not hurt.
Later, as Michelle sits in the living room, he is not interested in talking to or playing with her, and she replies, "Not so fast, mister. Park it right here." He does sit down and then spills the guts to her about the twins—so much so, he says that he is "apprehensive" about taking care of twins. As soon as "the word" comes out, Michelle, whom he asks to keep a secret, starts telling the whole family. In a chain reaction, Michelle spreads the word to Stephanie, Stephanie spreads the word to D.J., and D.J. spreads the word to Danny, Joey, and Becky. Jesse admits (as the inspirational music plays) that he is indeed scared of taking care of twins. He says it's easy being an uncle, but being a dad is going to be much harder with twins on the way. Becky assures him that she is also scared, but not as scared as him. Danny says that what they are going through is normal, as he too was a nervous wreck becoming a parent to three girls. Joey says that they will be great parents and the rest of the family will be there if they need them. Danny tells Jesse that for the past four years he has been "Uncle Jesse", but that will change because once the twins come to life there will be an "Uncle Danny", and he will teach them to be neat freaks. D.J. is excited to be babysitting her new cousins every day except Fridays and Saturdays, with Stephanie taking those days until she starts dating. Michelle also agrees, but on the condition that she does not change their diapers because they make her..."apprehensive" (to which the audience laughs). Jesse thanks the family for backing him up, though again, he admits that he is still nervous...or "apprehensive". Becky assures her husband that they will still make their share of mistakes, but no two kids are going to be loved more. They kiss, and then show the new baby pictures to the rest of the family (as the audience applauds and the EP credits appear).
- With this episode, Kimmy Gibbler (Andrea Barber) goes from a recurring character to a main role
- First appearance of Michelle's friend Teddy (Tahj Mowry)
- On the DVD, the season four intro is shown instead of the season five intro, so as to not give away what's to come two episodes later
- Danny’s evil twin Manny (mentioned in "Danny's Very First Date") appears in this episode (but only as part of Jesse’s imaginings)
- Beginning with this episode, the show moved from Fridays to Tuesdays for the rest of its run (Family Matters, which used to follow, moved up to the 8/7C time slot on Fridays to make room for the new Step by Step—from the same producers of Full House, Family Matters, Perfect Strangers, and the short-lived Going Places); in addition, it replaced ABC's Tuesday mainstay "Who's the Boss?", which was moved to Saturday nights until its cancellation at the end of the season
- Michelle's nervousness about what kindergarten will be like is similar to that of Stephanie's from "The First Day of School" (season 1)