There's two things humans cannot control. That we cannot affect. Time and gravity. So of course the twin sisters Hazel and Willow think they're freaks. They've been captured and experimented on by HYDRA because they're able to just that. Control time and gravity. They know they're not like others. But they don't know that they're on the wrong side. When history repeats itself, and the Avengers has to rescue twins from HYDRA, it turns out to be one of the hardest and most emotional missions so far. They discover a secret that's been kept from them, that makes the twins important to everyone's future. But how do you rescue the enemy? How do save someone who wants to kill you?