‘Walking Dead': 9 Key Episodes to Watch Before Season 7 Premiere (Photos)

‘Walking Dead': 9 Key Episodes to Watch Before Season 7 Premiere (Photos)

‘Walking Dead': 9 Key Episodes to Watch Before Season 7 Premiere (Photos)

(Spoiler Alert) Catch up on the most haunting and horrifying episodes before the AMC series returns on Oct. 23

The group makes it to the Center for Disease Control, only for the last living employee–Dr. Edwin Jenner (pictured)–to try and kill them with an explosion. This episode proved that both the living and the dead are to be feared in the world of the series

Rick and Shane had uneasily returned to being friends, but Shane’s obsession with Lori ran too deep. Ultimately, Rick killed his best friend to keep his family safe, showing the lengths he would go now that the world had fallen apart.

In one of the most shocking deaths the series has ever had, Lori dies during childbirth at the prison. But what was truly shocking is that Carl put a bullet in his own mother’s head to prevent her from reanimating as a zombie. The repercussions of her death are felt to this day

Andrea’s death at the end of this episode was particularly tragic. She had been despised by fans for her failure to kill The Governor, but earned some goodwill for her death scene in which she said she just wanted to keep the living from killing each other.

Hershel had counseled Rick throughout the season that he had it in himself to be a good man in this world gone mad. When The Governor threatened to kill Hershel and Michonne unless Rick surrendered the prison, Rick proposed that they could all live together in peace. In the end, Rick watched as The Governor cut off Hershel’s head and laid the prison to waste