Sam fell in love with Bucky's twin sister, Jaz. Bucky and Sam are best friends, Jaz was saved two years after Bucky was. Steve is already back to the past, since Bucky, Steve and Jaz are from. The 40's

No one has seen Jaz since Natasha and Tony died. Sam is the new Captain America and Bucky helps as well, with a few others. Sam is on a solo mission when he sees Jaz, She looks different through.

Sam tries to not get distracted but then when he sees her fight, he loses all control.