It's just a cat, right? I mean, the Avengers SHOULD be able to rescue a cat from a tree, right? Unfortunately, when both cat and tree are in an overlapping universe, giving them a very ghostly, and very INTANGIBLE presence, that does make it a puzzler. And it's doubly hard for the Avengers when their efforts attract a deadly interdimensional monster! Plus, the somewhat scintillating menace of...Hammerhead!