The Fight for Earth

Evil enemies from both the Doctor's past and S.H.I.E.L.D.'s want to conquer Earth. The Doctor and S.H.I.E.L.D's top agents must team up to stop this. However, they run into many unforeseen obstacles. They need the help of Earth's mightiest heroes, the Avengers, to overcome the challenges and save the Earth from certain annihilation. (The Fight For Earth 2 is now available as well!)