When Archer takes a higher-paying job at rival agency ODIN, Malory will stop at nothing to get him back.

It's family day at Greendale Community College and the gang's families come to campus to join in on the fun.

When a young boy is found murdered, the CSI team uncovers evidence that may link his death to an old case that recently resurfaced.

A patient who needs an extremely difficult surgery comes to Seattle Grace, and it's Richard and Owen who vie for the opportunity to tackle it. But the decision lies in the hands of Derek, who deems that Owen should take on the surgery, leaving Richard bitter. Meanwhile, Bailey deals with her own personal struggles when she nervously prepares for another date with Ben.

Real estate mogul Donald Trump.

When a possum bites the mayor's dog on a golf course, Leslie is asked to form a task force to catch the pesky animal. Meanwhile, Ron is upset when Mark refuses to bend the rules for him.

Scott Rasmussen interprets poll results, and David Aaronovitch discusses conspiracy theories.

Tonight's guests are actress Lisa Kudrow and a musical performance by Ryan Bingham. Eddie Izzard reads the email and tweets with Craig.

When Dr. Alicia Seberg, a government research scientist, is exposed to a deadly toxin while at work and has only hours to live, she calls Patrick Jane and the CBI to find her murderer.

Michael thinks he impressed Jo only to discover someone else in the office caught her eye. Meanwhile, Dwight makes trouble on Jim's first day back from paternity leave. Andy and Erin have an interesting first date.