Comedy Bang! Bang!

Uzo Aduba shows off her stand-up, and concerned citizen Tim Landers explains his plan to get back at some pesky neighborhood kids. Meanwhile, future Scott and future Cudi take a time machine back to the present to save comedy from total destruction.

Judy Greer shows off her universal audition and the gang looks forward to an appearance by Tom Hanks. Meanwhile, Kid Cudi is revealed to be a former hockey star, his rival shows up at the CBB studio to challenge him to a rematch.

Stephen Merchant dishes about his rock collection, and martial artist Dave Grigsby shows off his karate skills. Scott finds out a surprising secret about his parentage and has to go through a series of challenges against some formidable foes.

Robert Kirkman shares his greatest fears. Scott and his crew get real spooky for Halloween as the Comedy Bang! Bang! set turns into a haunted house visited by some stranded strangers.

David Krumholtz reviews Scott's hosting abilities, while Arthur Steinborn teaches the gang his memory technique. Scott and Cudi are visited by an avant-garde painter who wants to give the show a more artistic spin.

Michelle Monaghan shows off her hog-wrestling skills, and Alan Thicke performs personalized theme songs for the gang. After Scott suddenly gets rich, he's visited by his long-lost brother Billy.

Jake Johnson shares some dating tips and Scott debuts his new game show. The Comedy Bang! Bang! Studio is flipped upside down, and the gang must do the show hanging from the ceiling.

Adam Pally visits and talks about his holiday plans, and Scott premieres his new dating show. Kid Cudi introduces his new character, who becomes an instant celebrity.

Kathryn Hahn stops by and swears like a sailor. John Lennon comes back from the dead and Scott teaches the skills you need to host a talk show.

It's Christmas at Comedy Bang! Bang!, but global warming has turned the set into a beach. Josh Groban shows off his singing chops, and Scott falls in love.