Gibbs fights for his life after being shot by Luke. Meanwhile, Agent Dinozzo and Johanna travel to Egypt to take down The Calling.
Travis, Liza and Chris seek refuge with the Salazar family after escaping a violent riot. Meanwhile, Madison defends her home.
After the recent activities of the fish factory across the street raises some red flags for the gang, Dennis and Mac have Dee go undercover as an employee to gather intelligence. Feeling left out and suspicious of their friends' secretive activities, Frank and Charlie decide to spy on them.
When Nina is assigned one of Phil's old defendants, she bets him that she'll fix what he couldn't and get the guy out of the court system once and for all.
Sketches include: An episode of the dating reality show "Ice Dating", an auto accident caused by the Rich Dicks, and a rock star is talked out of suicide by a wacky radio host.moreless
The residents agonize over their oral boards, reliving every answer they gave during their exams; Arizona's close childhood friend comes to Seattle Grace for medical help; the doctors work on a patient who is missing one third of his skull; and Julia asks Mark to start a family with her. Meanwhile Catherine tells Richard that one of his residents has failed.moreless
After eight years of practice, the residents head to San Francisco for their oral boards; sparks fly between Catherine and Richard when they bump into each other at the hotel; Bailey intervenes after Owen and Teddy get into a heated argument about their young car crash patient; and Mark tries to recruit Lexie for one of his cases. Meanwhile, Alex feels guilty for being away from the hospital when Tommy's health begins to failmoreless
An alien race known as the Xindi launch an attack on Earth, causing great casualties and massive damage. As Enterprise heads back home, an unlikely source informs Archer about the Xindi and that their next attack will destroy Earth.moreless
The crew of the Serenity are in for a gunfight when one of Inara's former colleagues asks for their help. The Serenity crew defends a bordello from a gunslinger who got a prostitute pregnant and now intends to collect the child; Mal falls for the bordello's madam.moreless