On this week's The Walking Dead…

Rick, Daryl, and Oscar infiltrate Woodbury and rescue Maggie and Glenn.

Michonne sneaks off to confront the Governor. She discovers his room full of heads in fishtanks as well as his walker daughter, Penny.

Michonne kills Penny and fights the Governor before stabbing him in the eye. Andrea discovers the Governor's room.

A new group led by a man named Tyreese arrives at the prison. Carl helps them out, but locks them up after.

Michonne returns to Rick's group.

Oscar is shot.

Daryl is captured.

The Governor reveals to Woodbury that Merle was a traitor. He sees his brother for the first time. Andrea is horrified.