The Avengers Children

Five of the Avengers (Black Widow, Captain America, Hulk, Thor and Iron Man) had children that where stolen from them when they where young. These children (Natalie, Sarah, Bianca, Themis and Tessa) where kidnapped by hydra and trained to be warriors. Years later when Natalie breaks them out of the prison hydra was keeping them in they head to the avengers headquarters to find their parents. However they are intercepted by Secretary Ross and are told about the accords.

This story is set in the time of the film Captain America Civil War. The avengers are marvels and not mine but Natalie, Sarah, Bianca, Themis and Tessa are characters I have made up.