When Toddler Groot lands on Earth to deliver an urgent warning, Spider-Man must decode the message and keep him out of the evil clutches of both A.I.M. and Baron Mordo.
In the midst of a symbiote attack on New York, Spider-Man must convince Marc Spector, a survivalist who has recently given up his secret hero identity as Moon Knight, to help him defend the city.
Spider-Man discovers Norman Osborn is responsible for the Venom Symbiote's escape; Norman, aka the Dark Goblin, brings the Generations team to battle against Spider-Man.
When Spider-Man and his allies attempt to track down the missing and dangerous Lizard, they discover that Venom has returned to seek revenge on the earth.