Conquer Man-Mountain Because He's There! Four old foes of the Freedom Brigade regroup and magically restore their vitality. The group, now known as "Vendetta," then seeks revenge on the children of their former opponents. The police summon the Inferior Five to help battle the crooks.
They appear to be winning until a grenade created by the Masked Swastika changes glass-jaw boxer Brute Brainard into the "Man-Mountain," a green-skinned behemoth. With Man-Mountain's help, Vendetta overcomes the Inferior Five. Then they strike the First National Bank.
The Inferior Five recover and engage the crooks again. Merryman strikes a lucky blow to Man-Mountain's jaw and knocks him out. The other heroes then defeat the rest of the gang.
