Tearjerker alert: Captain America surprises his son on his birthday

Listen, I'm not going to tell you much about the video you're about to watch, because to say too much would ruin that golden moment of awesome. But I will say this: There's an adorable little boy who loves Marvel's first Avenger and a dad who traveled a long way to wish him happy birthday.

I've got a soft spot for father-son stories, so this short video sailed right into my strike zone. And unless your heart is made of stone—or you're an alien robot unfamiliar with human emotions—it'll hit home, too.

Even though I knew exactly where it was going ... it didn't matter.

(via Twitter)

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