With the world growing increasingly more dangerous and Lori’s pregnancy advancing, Rick discovers a potentially safe haven. But first he must secure the premises, pushing his group to its limit.

After a traumatic event, a life hangs in the balance. Complicating matters, the group must also deal with a potential threat to their new surroundings.

Andrea and Michonne find a new community of survivors; a decision must be made.

The group is severed, placing lives in jeopardy; Merle has a request for the Governor.

Rick struggles after another loss; Michonne is suspicious of the Governor.

As Andrea grows closer to the Governor, Michonne makes a decision about Woodbury. Glenn and Maggie go on a run. Rick struggles.

The governor seeks information; a new guest at the prison forces Rick's hand.

Andrea steps up when the people of Woodbury are thrown into uncharted territory; a new threat arises at the prison.

After the invasion of Woodbury by Rick’s group, Daryl and Merle are captured by The Governor. Rick decides the fate of Tyreese’s group.

The group is preparing their next step. Rick goes in search of his lost friend and meanwhile, Daryl and Merle are wondering if they themselves made the right decisions. The governor of Woodbury tries to restore order in the town and is planning to punish the people responsible for the chaos.

Rick and the group are forced to make a decision now that their safety is no longer guaranteed. Andrea feels uncomfortable now that Woodbury has become a police state.

Since they are outgunned against the Governor's forces, Rick undertakes a mission to get more weapons.

Rick and the Governor contemplate a peace treaty.

The Governor chases a fleeing dissenter; while the Governor is gone, a traitor tries to sabotage his plans.

Rick and the group are faced with a serious problem. If they want a truce with the Governor, they will have to make a huge sacrifice.

"Welcome to the Tombs" is the sixteenth episode and third season finale of the post-apocalyptic horror television series The Walking Dead. It was directed by Ernest Dickerson and written by Glen Mazzara and aired on AMC in the United States on March 31, 2013. In this episode, The Governor and Rick Grimes prepare for the upcoming war. Meanwhile, Andrea struggles to escape The Governor's torture chamber.