WATCH: Avengers Assemble For Heroic 6-Year-Old

The Avengers have returned for one special reason. That reason is Bridger Walker.

Last week, Walker, a 6-year-old boy from Wyoming, jumped between his 4-year-old sister and a dog that tried to attack her and saved her life.

He was left with huge bite marks and bruises and underwent two-hours of surgery resulting in more than 90 stitches. When asked why he jumped, he said, “If someone had to die, I thought it should be me.”

To lift his spirits, Bridger’s aunt Nicole created accounts on socials asking for his favorite super heroes and celebs to send him well wishes.

Watch the special messages sent from the Avengers below.

Captain America / Chris Evans

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There are no words. We are so, so thankful.

A post shared by Nikki Walker (@nicolenoelwalker) on

Ironman / Robert Downey Jr

Spider-man / Tom Holland

Thor / Chris Hemsworth