Impossible Man appears at the base of the Agents of S.M.A.S.H. in the form of Fin Fang Foom where he attacked them until Hulk sees through his ruse.
After absorbing Impossible Man's powers, Sauron later used them to summon the real Fin Fang Foom. Due to the absorption of Impossible Man's powers wearing off, Sauron tried to absorb Foom's powers only to be knocked out far into the ocean. The Agents of S.M.A.S.H. fought hard to defeat Foom.
When Impossible Man is back at full strength, he borrowed Pym Particles from Hank Pym's lab to enlarge the Two-Headed Compound Hulk to large size so that he can defeat Foom. The Two-Headed Hulk then threw Foom far into the ocean where he landed on Sauron.
Foom later returned to battle Spider-Man and the Avenger