Bucky is married to Wolf, Tony's oldest daughter. Bucky and Wolf are 'Dead', the Avengers think they are dead. Tony knows they are not dead, plus knows where they live.

Bucky and Wolf have a daughter, Melody who's 7 years old. They live on a farmhouse in Russia, they all know Russian even Tony.

Bucky said yes to the team coming tot he farmhouse, since Tony and the team head a place to hide from fury.