Watch the Marvel Universe Sunday Mornings on Disney XD! Watch the Marvel Universe Sunday Mornings on Disney XD!

The Avengers assemble to rescue Thor from the Squadron Supreme in a clip from "Marvel’s Avengers Assemble," airing Sunday at 8:30 AM ET on Disney XD!

"Avengers Underground" Clip 1

The Avengers assemble to rescue Thor from the Squadron Supreme in a clip from "Marvel’s Avengers Assemble," airing Sunday at 8:30 AM ET on Disney XD!

The Avengers assemble to rescue Thor from the Squadron Supreme in a clip from "Marvel’s Avengers Assemble," airing Sunday at 8:30 AM ET on Disney XD!

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