Just as the men are getting comfortable with their severe environment, Alex is injured with a minor cut. In a twist in the game, Dave and Jenna are forced to mix up the tribes to include men and women for each. Shawana suddenly feels better once the guys join Jaburu.

When Chandler jokingly posts an outrageous biography of Ross on his college alumni website, Ross retaliates in similar fashion - triggering an Internet war between the two friends.

A personal secret of Dr. Cox is revealed during hospital visitations by a cocky M.D., who establishes a rapport with J.D.

An elderly woman crashes her car into a crowded restaurant. One of the patrons is Sara's paramedic boyfriend. Grissom and Nick investigate the possible carbon monoxide murder of a woman in her home.

A jealous Will keeps a wary eye on the re-modeled Barry when he spies him on a date with Jack, while Karen switches roles with Rosario pretends to be a maid in order to court a handsome maintenance worker. Meanwhile, Grace finds herself hanging out more and more in her old digs in Will's apartment as she waits for her husband to return from overseas.

Alderman Bright returns to blackmail Weaver into treating his gay lover for syphilis (off the record, of course). Unfortunately, the man dies from an allergic reaction to penicillin and Kerry is forced to cover up her mistake. Things between Abby and Carter have cooled down following Carter's aborted marriage proposal, but they soon heat up again. Luka has a very unconventional therapy session. Romano's condition forces Anspaugh to replace him as chief of staff...with Weaver.

They search for a retired U.S. Army officer who has disappeared right after a dinner that was given in his honor by former members of his Vietnam platoon.

Tonight, actor and star of Ed, Thomas Cavanagh.



Jon first looks at Presidnet Bush's gracious acceptance of a bowl of shamrocks from a group of Irish diplomats.



Jon then talks with Senior Death Analyst Stephen Colbert about the halt of the 300th execution in Texas ten minutes before his execution.



Next, Stacy Grenrock-Woods looks at fenced in buffalo hunting in a segment called "Buffalo Soldiers".



Jon then looks at the scandals surrounding the NCAA, including the University of Georgia's withdrawal from the NCAA tournament due to acedemic fraud in a segment called "March Badness".



Frank DeCaro looks at Oscar nominees for best actress in a segment called "Out at the Movies".



Finally, Rob Corddry with his St. Patricks Day tip.