Reggie Watts returns to the show just in time to try to prevent a disaster; Weird Al has a surprising announcement; Adam Scott tries to give Scott some assistance.

Scott tries to pull off the perfect episode with a scientist's invention.

Tom Lennon demonstrates how very messy he can get, while Scott's editors go on strike, so he shoots the show in one take to air as is. Also, a Broadway director spotlights songs from his hit show.

Jake Johnson shares dating tips; 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.

When Scott runs late for work, Reggie and guest Andy Dick explore the endless possibilities that one missed bus can make. A mysterious stranger has dire advice for Scott and his mechanic reveals the best location for underground comedy.

Activist Victor Ramos shamelessly plugs some community program he's heading; Steven Yeun shares his preparations for the inevitable zombie apocalypse; plus, there is compiled footage of Reggie's entire life.

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

When Scott leaves the show for a new opportunity, Jason Mantzoukas takes over as special substitute host and his first guest ends up being Scott; legendary soul singer Donny Gary.

Actors Gillian Jacobs and Jason Mantzoukas stop by Comedy Bang! Bang! in the midst of Scott and Reggie trying to answer cliffhangers throughout the episode. Does Reggie’s new girlfriend have a secret agenda? Will Scott seek revenge over his stolen sandwich? Who’s inside the mysterious coffin on set? Special Guests: Chris Hardwick, Adam Scott and Michaela Watkins.

Inspired by “I Dreamed A Dream,” Casey Wilson sings her heart out during this week’s musical extravaganza episode. We find out who lives below the studio and learn a valuable lesson about the importance of talking. Special Guest: Thomas Lennon and Paul F. Tomkins.

It’s a drowsy day in the studio as the cast and crew keep dozing off. Reggie dreams of making music with Tears for Fears. Will Scott find the key to keeping everyone awake?

Zach Galifianakis, "Weird Al" and the Comedy Bang! Bang! crew look back at at their favorite memories of Scott.

Scott receives some disturbing news that may mean the end of Comedy Bang! Bang! forever, but before the end, old chums Lord Andrew Lloyd Webber and Fabrice Fabrice stop by to wish the gang goodbye.

Host Scott Aukerman welcomes guest Paul Rudd, and discovers they both have a love of mime. The inventor of the adorable Crowpoke robot attempts to repair it when it breaks down. Huell Howser becomes fascinated by Scott, bandleader Reggie Watts, and everything else. A man who should be dead tells the harrowing tale of how he lost his arm. Scott leads his guests in the game "Ring it or Ding It".

Kevin Smith helps Scott celebrate his birthday; Reggie tries to create a special episode for Scott; a college student with an attitude.

After one too many pranks, Scott and Reggie are forced to switch show themes with the sports talk show hosts next door. Eddie George reveals the secret behind his greatest plays, and NFL Commissioner Wendell Gazell explains the changes he's making to the game.

Rapper Kid Cudi drops by to give Scott a lesson in the art of the prank phone call, and 6-year-old film critic Aiden Tomasetto shares his favorite movies. Reggie tries to mend his broken heart as a contestant on Scott’s new dating show.

A physicist takes Scott, Reggie, and the crew aboard his spaceship, but danger soon arises; Scott wants to be able to interview Colin Hanks and celebrity stylist Trey Booth but the perils of space may get to them first.

When Scott is assigned Kid Cudi as his new partner, the two of them must settle their differences and learn to work together. Michael Cera shows off his business cards, and German pretzel maker August Lindt shares his odd recommendations for vacation destinations.

Scott fires security guard Zeke and hires someone new to protect the show's belongings. Carly Rae Jepsen premieres a new song, and amusement park owner Tim Duncan explains his scariest ride, the "Samurai Scream."

Scott and Kid Cudi try to catch a rat in the studio before their annual health inspection. Meanwhile, Mary Elizabeth Winstead celebrates her birthday, and inventor Ahmad Rashad al-Zarqawi shows us his new gadget.

Kathryn Hahn swears up a storm; John Lennon comes back from the dead; Scott teaches the skills needed to host a talk show.

Kristen Schaal shows off her real voice; Paul Rust debuts his New No Nos.

Weird Al and the gang cope with an untimely death of a friend; Allison Janney stops by the Comedy Bang! Bang! set to chat and play an exciting game.

Malin Akerman reveals all her deep dark secrets; Slow Joey tries to juggle his new business venture with falling in love.