Dave welcomes actor Denis Leary, actress Olivia Wilde, and musical guests The Pierces. The San Francisco Giants perfect game pitcher presents the "Top Ten Things I Want To Achieve Now That I've Thrown A Perfect Game". Denis has come up with the next killer app idea. Olivia and boyfriend Jason Sudeikis went to Jamaica, but it turned into a bad Japanese game show. The duo from Alabama performs "You'll Be Mine" from their album, "You & I."

The contestants travel to Camp Pendleton, Calif., where they work in teams to prepare a meal for 200 servicemen and women.

Muscle Man wants to spread his dad's ashes at the Big Rig Museum and needs Mordecai and Rigy's help getting there.

Barack Obama changes immigration policy, Neil Munro interrupts the president, Sweden confronts Stephen's Twitter-control crusade, and Paul Krugman talks economic strategy.

The First Minister of Scotland Alex Salmond; from "Brave", actress Kelly MacDonald and actor Kevin McKidd.