The Serpent of Doom Avengers Assemble : Season 1 Episode 4
TV-Y7 Disney XD 23m int(0)
Aired: July 14th, 2013 @ 9:00 PM EST on Disney XD
Thor believes he must sacrifice himself to save the world from Doctor Doom, who summons the Midgard Serpent using a powerful Asgardian weapon.