#1 Daddy Dave and #2 Murder Nova square off while best friends #3 Doc and #4 Monza battle on the street for the first time. After installing a secret weapon on his Monte Carlo, Doc is painfully reminded that testing on the street is very illegal.

A year-end blowout sale becomes literal for a used-car lot after one of its owners is killed when a bomb explodes. While the squad tries to find who is responsible, Rusty dons a bullet-proof vest under the watchful eye of Lt. Chuck Cooper, a SIS (Special Investigation Section) supervisor, in an attempt to catch the person responsible for threatening his and Sharon's life.

Bobby confronts his past when he recieves an invite for a "Back to the 80's" party and is forced to face his past tormentors.

Guy's failure to mend his relationship with Zosia has him finally admit defeat and accept his daughter's wish of keeping it purely professional. How long will it take until their feelings bubble to the surface?

Josh Widdicombe, Milton Jones, Ed Byrne, Stewart Francis and Katherine Ryan are the guests on a special festive edition of the show.

Graham is joined on the show by Will Ferrell, Steve Carell, Christina Applegate, Paul Rudd, David Koechner, Joan Collins, Jackie Collins, John Cleese, Eric Idle, Terry Jones, Michael Palin, Terry Gilliam, Frank Skinner and Michael Bublé.