As part of his community service, Tracy must coach a little league team. All goes well until Jack takes interest in the team and turmoil starts from there. Meanwhile, Liz is asked out on a date by Jamie, the new coffee boy, who thinks Liz is actually younger than she ...

Alan finds out that Charlie stole his girlfriend and works on a plan to get back at Charlie, even though this happened when they were in high school.

Charlie fights his attraction for Teddy's daughter.

Jack falls for a congresswoman he meets at a cocktail party and despite the fact that they hold opposite views, the couple agrees to put politics aside and have a secret affair. Meanwhile, Liz believes her Middle Eastern neighbor to be a terrorist and thus tips off Homeland Security - ...

Charlie writes a children’s song and finds success as Charlie Waffles. The kids and their parents love him. However, Charlie's new found fame irritates Alan.

Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

Robbie goes on a date with Lilly's Mom, but when things don't go as planned, Miley & Lilly fight over who's at fault. Jackson and Rico pretend to be each other.

It's time for Kenneth's annual house party - but he may be the only one excited about it. The soiree has only been attended by Liz in the past, so in order to get a better turnout Tracy spreads rumors that ultimately get out of hand. Meanwhile, Jack deals with ...

After Alan and Charlie have a fight about Alan's role in the house, Alan packs Jake up and moves in with his mother.

With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.