It the sixth One-Shot in the Marvel Cinematic Universe (MCCU).It stars Mark Ruffalo as the title character.
After S.H.I.E.L.D. become public they give Bruce Banner his own lab so they could makes gadgets for them in exchange they can use the Hulk. So after working and finishing a gadget for a week S.H.I.E.L.D. drop the Hulk in a town full of African militia.