The Diffy's discover Curtis the Caveman stowed away in the time machine and now it's up to Lloyd to...

Phil skips Unification Day to go to a party that he can't even get in to. Pim cheats on a cooking as...

Phil tries to find out if Keely's crush is cheating on her by using his "insta morph" to make himsel...

Lloyd and Barbara decide to go on a weekend road trip for their anniversery. They leave Phil in char...

Phil's poor penmanship lands him back in Miss Winston's second grade class. Tanner shows him up in f...

Phil gets detention and goes to the dance with his new "guy friends." But when a bull attacks his ne...

Phil helps Keely with her stage fright so Phil shrinks himself and sits on her microphone during her...

Phil and Pim worry that Lloyd will embarrass them when he plans to play American folk music at their...

Phil tries to dissuade another girl's affections; Pim joins the orchestra to sabotage Debbie's solo;...

Pim and Phil start school in 2004. Phil meets Keely and offers to tutor her in Algebra. Pim tries to...

Phil uses a futuristic gadget to compete in the gymnastics tournament.

Phil and Keely go to the Tomato Ranch. But Phil is worried about going in the tomato mashing tub as...

Phil and Keely start a day-care service for dogs to earn money for concert tickets. Phil uses a futu...

A school video project causes Phil to overlook his friends' feelings; Pim is recruited for a track m...

Debbie enlists everyone is school to help her bake cupcakes except Pim. But soon enough Pim is force...

Keely uses the "New-Ager" and pretends to be a substitute teacher, but she then gains the attraction...

Phil tries to impress the mayor's daughter but things get bad when he switches places with Curtis. P...

Phil defends Pim against a bully and then he gets bullied. Curtis takes the neighbor's lawn ornament...

Phil and Keely enter a science fair featuring next Century's "milk engine" sending Lloyd into a stat...

Phil and Keely pretend to be in cheerleading to impress Mrs. Teslow. Pim tries to find the one thing...

Phil's future "friend" comes to 2121. He offers the Diffy's a way to get home. Will Phil choose the...

Phil and Pim have been fighting all week. Lloyd and Barbara couldn't take it any longer so he called...

Phil and Keely are on a virtu-date and the robot waiter starts flirting with Keely and Phil is jealo...

Phil and Keely have a huge test in Mr. Messerschmitt's class, but take advantage of The Giggle. Phil...

Mr. Hackett moves in next door and the Diffys invite him for dinner. Pim tries to sell the house.

When Tia moves away, Keely gets Phil into doing everything that she would normally do. So Phil hooks...

Phil is forced to cancel his school dance date with Keely; Pim uses the Wizard to create a date for...

Mr. Messerschmitt insists his students take the Career Placement Test. However, Phil doesn't know wh...

Lloyd realizes that the high school's time capsule could return the Diffy's to the future.

Phil replaces Curtis as field trip chaperone when Mr. Hackett is too ill to escort their class to th...

Phil and Keely offer to babysit Mr. Messerschmitt's nephew Nathan, and get more than they bargained...

Phil solves a problem that math teacher Mr Hackett says is impossible - and Keeley blurts out his an...

Pim abuses her power when she becomes principal for the day.

Phil's sick of everyone invading his personal space and jumps at the chance of living in the garage....

Phil is fed up with trying to hide his secret about being from the future, and decides to tell the w...

When Christmas Eve rolls around, Phil tells the story of when his family first came to Pickford and...

Keely tries to get together two people and it backfires on Phil. Pim becomes a "psychic" and fools...

When no one watches Keely's investigative reports show Pim comes to the resuce by offering to help m...

After forgetting Keely's birthday last year, Phil is determined to make this the best birthday - or...

The Diffy's catch a futuristic disease called greenemia which causes them to turn green and act comp...

Phil loses the wizard and to his suprise he finds that Mr. Hackett has it. Now Phil is on a mission...

Phil finds out that a kid from his school is actually his great-great-grandfather.

Phil and Keely finally become a couple. Though Lloyd has all of a sudden fixed the time machine, no...