, it's less so a punchline than a gut punch: These guys are dealing with massive PTSD from their time serving as superheroes and fighting the so-called big three. (Androids, aliens and wizards.)Still, the fact that Bucky Barnes (Sebastian Stan) and Sam Wilson (Anthony Mackie) are more odd than couple means that all of the miracle questioning and soul gazing they do in couples therapy provides its fair share of humor, too.