The plot is unknown.
The actions of the Avengers lead to collateral damage creating political pressure to install a system of accountability, which divides members of the team. Captain America (Chris Evans) believes superheroes should be free to defend humanity, while Iron Man (Robert Downey Jr.) disagrees, as their debate sparks an all-out feud.
The Cooper clan come together for their annual Christmas Eve celebration, but a series of unlikely events and new revelations turn their traditional night upside down. This leads them all toward a rediscovery of family bonds and the spirit of Christmas.