SECRET EMPIRE TIE-IN! As Steve Rogers' prisoners of war attempt to break out of HYDRA's top-secret prison... ...the other half of the U.S.Avengers - and a host of international guest stars - break into America! Plus: The fate of the Red Hulk! And what's going on with Cannonball? Did we kill him, or what? Rated T+ Date Available: 08/16/2017