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Bridger and his younger sister were at a friend's house when, according to information shared with \"Good Morning America,\" a dog charged at the little girl.

\"In Bridger's words,\" his dad, Robert Walker, shared, 'I stepped to the side, in front of my sister so that the dog wouldn't get her. I kept moving, so it couldn't get past.' Tragically, instead of running off, the dog leaped and latched onto Bridger's cheek. Bridger explained that when the dog bit him, he yelled for his sister to run. After the dog released, Bridger ran to his sister and led her to a more secure part of the yard where he thought they would be safe.\"

The story became a viral sensation when his aunt, Nicole Walker, posted a photo to Instagram and tagged a few celebrities.

View this post on Instagram

My nephew is a hero who saved his little sister from an attacking dog. He, himself, took on the attack so that the dog wouldn't get his sister. He later said, \"If someone was going to die, I thought it should be me.\" He got home from the hospital last night. I know it's a long shot, but I'm reaching out to the Avengers and other heroes so that they can learn about this latest addition to their ranks. Please, check your DM's for my sweet nephew's story. @tomholland2013 @chrishemsworth @robertdowneyjr @markruffalo @prattprattpratt @twhiddleston @chadwickboseman @vindiesel @chrisevans @vancityreynolds @thehughjackman Edit: I never expected my sweet nephew's story to reach so many. Please, follow my other post (I only have two so far 😅) for the latest info regarding my sweet nephew and his family.

A post shared by Nikki Walker (@nicolenoelwalker) on Jul 11, 2020 at 7:42am PDT

Bridger's dad said they have received \"tender, heartfelt messages\" from Hugh Jackman, Zachary Levi, Tom Holland, Anne Hathaway, the Russo brothers, Robbie Amell, and Mark Ruffalo.

Bridger underwent a two-hour surgery that required 90 stitches, but his bravery never wavered. He told his dad, \"If someone had to die, I thought it should be me.\"

Besides promising Bridger an authentic Captain America shield, Evans offered words of encouragement at the boy heals from his injuries.

\"I know recovery might be tough, but based on what I've seen, I don't think there's much that can slow you down,\" he said.

Bridger was all smiles after seeing the video. His little sister said he can take the shield \"wherever you go.\"

Robert Walker said the family was \"entirely unprepared\" for the outpouring of love and support the family has received, with many asking how they can help.

\"After Bridger's actions,\" he said, \"our family has settled on a simple request: may we each actively strive to bear one another's burdens; stand up for and protect those that are weak, oppressed, or those whom the world might forsake; mourn with those that mourn, comfort those that need comfort, and love one another.\"

The Walt Disney Company is the parent company of ABC News.

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