Ugly Americans

Twayne is drafted into the Army of Satan. When Mark is forced to join him, he discovers a plan to end humanity. Special guest star: Rob Riggle as the drill sergeant.

After Callie repeatedly refuses to go through with her arranged marriage to Twayne, her parents temporarily get back together and have a second daughter to take her spot.

Twayne and Callie must infiltrate a secret Wizard compound where Leonard is training his apprentice. But their complicated strategy involves building a summer camp on a moment's notice, with Mark Lilly as their head counselor.

Guest starring Dan Fogler. When the country's biggest pop star ('Lady Hoo- Ha') goes zombie, millions of her devoted fans follow suit. When Mark befriends one of the new zombies, Randall is forced to deal with his jealousy issues.

The end of his favorite TV series, 'Dishonorable Discharge' sends Grimes off the deep end. Mark has to help him get to the bottom of his inexplicable attachment to the show, uncovering a deep seated memory along the way.

Mark accidentally puts on an engagement ring belonging to Leonard.

Randall puts Mark's soul up for sale, Grimes pursues his dream of creating a pop music act with a teen sensation.

Callie creates clones of Mark to win a bowling tournament. But Mark's Clone finds a message in Callie's diary, and decides to get revenge by framing her for murder.

Twayne throws a company party aboard a cruise ship; Randall gets sick from dangerous pollen.

Randall feels neglected; Grimes mummy returns.

With the big company intramural football game around the corner, everyone starts getting nervous about the lineup -- Mark is a wonderful team player, but a terrible actual player.

Callie reveals to Mark that she's been sleeping with other guys. A girlfriend from Marks past returns, with a dark secret.

Guest starring Bobby Moynihan, Abby Elliot. An ant-sized arsonist named Jerry flees Mark's custody, escaping up Twayne's nostril. A miniaturized Leonard, Grimes and Mark must track Jerry through Twayne's body to bring him to justice.

Guest starring Lisa Lampanelli, Dana Gould, Alan Tudyk. In honor of Twayne's 10-year anniversary of running the D.O.I., Callie and the crew throw him a Roast. But when Mark's attempt at edgy humor goes too far, Twayne quits, leaving Mark in charge.

Guest starring Janeane Garofalo. Mark becomes a masked crimefighter after he's bitten by a rabid Bat-Boy. With the help of his loyal sidekick, Koala Man, Mark wages war against New York's criminals and their catlike leader.

Guest starring Jon Benjamin and Ed Helms. Mark becomes conflicted about his relationship with Callie after she gets a promotion by turning herself into a man.

Guest starring John Gemberling. Mark chooses April Fool's Day to ask Callie to take their relationship to the next level, but his romantic gesture is threatened when Callie's vengeful ex-boyfriend returns to win her back.