The class makes a music video for a time capsule

The IHP class graduates, with T.J. as valedictorian. (Part 2 of 2, and series finale)

A high school substitute teacher takes over a class of geniuses.

Charlie is upset when the IHP's regular teacher announces his return from sick leave.

Charlie's ex-flame evaluates the class

Simone receives a discouraging letter from her favorite poet....after his death. Dennis tries to give up sarcasm and pranks.

The class imagines life 20 years in the future

Mr. Moore spends Thanksgiving with Dr. Samuels

Charlie receives a love note from a secret admirer he suspects is in the IHP.

The IHP faces their Russian counterparts in an academic tournament. Eric must join the team to replace an ailing Jawaharal.

The IHP class behaves obnoxiously when their bus breaks down at a rural truck stop.

With a wrecking ball ready to demolish the school, the IHP class waits to fund out who's to be valedictorian. (Part 1 of 2)

Dennis misquotes Mr. Moore for the school newspaper

Janice feels left out in class and decides to throw a party to make friends. Charlie dates a model.

Charlie tries his hand at ""Hamlet""

Maria dates the captain of the opposing team

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To save Dennis after a prank, Billy creates a fictional student -- who apparently gets the MIT scholarship Dennis wanted.

After their team project wins them a trip to Washington, D.C., Sarah and Arvid develop slight feelings for each other. But things aren't necessarily a bed of roses between them.

Charlie sets Arvid up with a job at a hot nightclub, which causes Arvid to develop a cocky, image-conscious attitude.

The class learns T.J. is more than just a contemporary-style musician when Billy discovers her operatic talent.

When doing reports on their ancestry, both Alan and Darlene find things out that they don't want to.

Darlene promises to treat the class to an elaborate farewell dinner, but then finds her credit card revoked.

Arvid tries to impress a girl by challenging the school basketball players to a volleyball match against the IHP class.

Charlie must pass a test in Macro Economics in order to keep his teaching license. The IHP attempt to help him.