Patrick Jane goes head-to-head with a "psychic" he suspects of murder. Intent on proving the so-called psychic is a fraud -- as well as a killer -- Jane arranges a séance to expose the murderer.
Olivia joins forces with the Strike Team to catch a Mexican drug king and his shipment. Meanwhile, Dutch cleans up Billings' mess, and the death of a woman associated with the Strike Team prompts an investigation by Claudette.
The team searches for a paraplegic who had been injured two years earlier in a car accident and is now missing. Their investigation shocks them when they discover the truth in what may have caused his disappearance.
A strange delivery in a box arrived at the Navy facilities: The delivery driver and a Navy MP officer discover it is a sailor's corpse. A shocking revelation comes to light after the team is forced into playing a dangerous war game.
Stabler goes undercover to infiltrate a rare animal smuggling operation.
Mike visits a Chicken Farm to see how eggs make it to the store. There, he finds out that 1.4 million chickens equal a lot of poo, which he gets the chance to clean. Later, Mike learns how dirty dirt becomes clean dirt as he sterilizes soil in Oklahoma.
Three homemade bombs claimed two lives in Salt Lake City and injured a third. Document examiners were the forensic experts who uncovered the motive and exposed Mark Hofmann as the guilty party.
Sam thinks it's all right for Todd to be in her life as a friend while dating Owen, but doesn't like the idea of Owen's ex, Willow, being Owen's best friend. Meanwhile, Andrea gets Dena to take pictures of her in hopes of landing a professional basketball player.
It's Easter and the lack of happiness in Moralton leads several troubled souls to Forghetty's Pub for some unavailable solace.
Nathan learns of his father's plans, while Flint and Knox launch attacks on Hiro, Ando, Peter, and Claire. Meanwhile, Matt tries to revive Angela, Sylar meets with Elle, and Mohinder begins testing of his newest superpower formula.
When Karen forgets to pay for a muffin, she finds out what it's like to be on the wrong side of the law; Hank changes his email password, forcing Wanda to try to get inside his head in order to figure out what the new password is; Brent takes to the kitchen to prove that he can cook dinner as well as eat it.
The in-laws finally meet up, as Sam's parents meet Mel's folks for the first time.
Heidi decides to go back to Brent and Sam and ask for her job back. Plus, Holly Montag's crashing at Lauren and Lo's since getting kicked out of her sister's place.
The gang launches a bloody bid to take over Rome's drug trade, but encounters stiff resistance from an intimidating underworld kingpin. Scialoja tries to get a new lead on the criminals' plans by tracking down Dandy's mistress Patrizia - only for his investigation to take an unexpected turn.
When Sarah Jane finds a time fissure, her curiosity leads her to go through it and she finds herself in 1951, in the village of Foxgrove, where she was born. Eager to see the parents she never knew, she makes a decision that will have catastrophic consequences
A teenage boy accidentally stumbles upon a government conspiracy and is instantly absorbed into the world of MI5, ending up on the run. Lucas and the team battle to protect the boy from those who wish to silence him. Harry receives a cryptic message from his asset in Russia which could be the key to bringing down the high-level MI5 mole.
Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.
Carl and Denny go to Virginia to defend a prison guard who shot a death-row inmate when a lethal-injection execution was botched. Meanwhile, Alan and Shirley help a woman who says she lost her job after voting for John McCain.