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When Sheldon's favorite TV show ends before its proper conclusion, Amy tries to help him deal with the loss on The Big Bang Theory.
The guys compete for tenure and shamelessly schmooze committee members including an HR person who has already had a run in with Sheldon on The Big Bang Theory.
On The Big Bang Theory, Howard uncovers a letter from his father who had left the family years before but he's unsure he wants to read it.
Sheldon, Howard, and Leonard give a presentation on careers in science to a group of junior high girls on The Big Bang Theory.
Sheldon gets to witness Penny's acting talents up close and Koothrapali's date walks out on him on The Big Bang Theory.
Everything goes awry when Leonard arranges a special Valentine's Day celebration for Penny and her ex shows up and Sheldon has his research assistant find a present for Amy on The Big Bang Theory.
Leonard moves in with Penny after he and Sheldon have a fight, meanwhile with Howard away on a trip Raj keeps on eye on Mrs. Wolowitz.
Sheldon reacts badly when he is forced to work with his arch nemesis Barry Kripke and Raj and Howard buy action figures of themselves on The Big Bang Theory.
On The Big Bang Theory the boys head off to a comic book convention dressed as characters from Star Trek: The Next Generation.
Will Sheldon take Leonard, Raj, and Howard down with him when his is accused of sexual harassment on The Big Bang Theory.