Season 1, Episode 20 The Casket of Ancient Winters

First Aired: May 15, 2011

The Avengers must stop Malekith the Accursed from using an ancient relic that could put the Earth into a deep freeze.

Watch Now

Trending TonightSee all »

Watch This

Jared Padalecki and Jensen Ackles Reunite With Supernatural Co-Stars on Kings of Con

Supernatural's biggest stars are apparently too famous to remember Richard Speight Jr and Rob Benedict.