Xfinity's description of Frogs:
Mother Nature takes her revenge on a sinister plantation owner; after years of destroying the bayou and wildlife the swamp creatures overrun the plantation and hunt down the owner and his family.Those determined swamp creatures! Except its the plantation owner who did the destroying. So what's wrong: either the semicolon needs to move to after "wildlife", or (and better, I think) that participle needs to be given its own subject. Either "after years of his destroying" or a conversion to a finite clause - "after he spends years destroying" or some such - will work.
As written, it's an incoherent plot. (Yes, yes I know that Frogs is a bit incoherent, but at least the frogs have a plan! And they weren't big enough to eat Ray Milland, either - they stomp him to death.)