Chuck

Sarah keeps a secret from Chuck to accomplish a mission.

Chuck faces Quinn (ANGUS MACFADYEN) on a speeding train.

Morgan faces the consequences of his time as the Intersect.

Gertrude Verbanski (CARRIE-ANNE MOSS) returns for a mission.

Sarah meets an old handler (TIM DeKAY). CHERYL LADD guests.

It's revealed who's trying to destroy Carmichael Industries.

Chuck and Sarah fight a ruthless spy (REBECCA ROMIJN).

Chuck returns to his roots as a hacker for a new mission.

Chuck and Sarah go undercover at a Buy More convention.

Being the Intersect inflates Morgan's ego.

CARRIE-ANNE MOSS guest stars as Chuck's competition.

MARK HAMILL and CRAIG KILBORN appear in the season premiere.

In the fourth season finale, will Chuck and Sarah marry?

Will Chuck's mom (LINDA HAMILTON) get to his wedding alive?

Chuck's bachelor party gets out of hand.

Chuck and Sarah enlist her dad (GARY COLE) to catch a thief.

Chuck must join forces with his foe (TIMOTHY DALTON).

There's a murder in Castle. Chuck must solve "who done it."

Chuck fears Casey has a secret that may split up the team.

Chuck and Sarah plan the ultimate heist. RAY WISE appears.

The team is sent on a mission ... on Valentine's Day.

Chuck reunites Sarah with her old spy team.

Roan Montgomery (JOHN LARROQUETTE) needs help in Morocco.

Taking down Volkoff (TIMOTHY DALTON) gets more dangerous.

Sarah embarks on a mission that could be her last.

In France, Chuck juggles a mission and plans for romance.

Chuck's mom (LINDA HAMILTON) comes over for dinner.

Sarah goes on a rogue mission. RICHARD CHAMBERLAIN guests.

Chuck fears that a major loss may end his spy career.

Chuck and Sarah's first fight. TIMOTHY DALTON guest stars.

ROBERT ENGLUND (A Nightmare on Elm Street) guest stars.

Chuck's latest mission provides a link to Casey's past.

ARMAND ASSANTE returns as Goya. TIA TEXADA also appears.

Old foes -- NICOLE RICHIE, STEVE AUSTIN -- bring new threats

Chuck and Sarah travel to Milan. LOU FERRIGNO guest stars.

Season premiere: Chuck looks for his mom (LINDA HAMILTON).

The Ring targets Chuck and his team in the season finale.

The Ring targets Chuck and his team in the season finale.

Chuck keeps his spy life from his dad (SCOTT BAKULA).

CHRISTOPHER LLOYD guest stars as Chuck's CIA shrink.

FRED WILLARD and SWOOSIE KURTZ guest star as a CIA team.

In Europe, Sarah and Chuck take on rogue Spanish spies.

Chuck questions Shaw's (BRANDON ROUTH) emotional stability.

Chuck is determined to get Sarah back.

Chuck's fate as a spy rests on one final mission.

Casey commits treason. Chuck tries to save him.

Chuck gets left behind on a mission when he can't flash.

Chuck goes undercover as a dangerous assassin.

Chuck must protect Hannah (KRISTIN KREUK) during a mission.

Chuck trains new Nerd Herder Hannah (KRISTIN KREUK).

Chuck has his first solo mission. KRISTIN KREUK guest stars.

Awesome a spy? ANGIE HARMON, BRANDON ROUTH guest star.

Chuck uses Awesome to protect a dictator (ARMAND ASSANTE).

Can Chuck control his emotions? VINNIE JONES guest stars.

In the season premiere, Chuck trains to become a real spy.

In the season finale, Chuck must save his sister's life.

CHEVY CHASE, SCOTT BAKULA and TONY HALE guest star.

Chuck turns to a surprising person to help find his father.

Recurring guest stars SCOTT BAKULA and CHEVY CHASE appear.

TRICIA HELFER ("Battlestar Galatica") guest stars.

Chuck is contacted by the creator of the Intersect.

Chuck faces the threat losing Sarah to Cole (JONATHAN CAKE).

Chuck is jealous as Sarah gets close to an attractive agent.

Chuck helps Morgan spy on Anna but flashes on her new man.

ANDY RICHTER and JENNY McCARTHY guest star.

DOMINIC MONAGHAN and JEROME BETTIS guest star -- in 3 D!

Everyone is held hostage at the Buy More on Christmas Eve.

Chuck sees Sarah with a mystery man. GARY COLE guest stars.

CARL LUMBLY, MORGAN FAIRCHILD, BRUCE BOXLEITNER guest star.

Chuck's girlfriend (JORDANA BREWSTER) is a Fulcrum agent.

Jill (JORDANA BREWSTER) gets jealous when she meets Sarah.

Chuck sees his ex-girlfriend (JORDANA BREWSTER).

TONY HALE ("Arrested Development") guest stars.

NICOLE RICHIE guest stars as Sarah's old school nemesis.

Former footballer MICHAEL STRAHAN (N.Y. Giants) guest stars.

JOHN LARROQUETTE and MELINDA CLARKE guest star as spies.

MICHAEL CLARKE DUNCAN guest stars. Chuck asks Sarah out.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.

Chuck's life turns upside down after he downloads a few government secrets into his brain.