Ultimate Spider-Man

Spider-Man learns that the Green Goblin is planning to travel across the Multiverse using the Siege Perilous he stole from S.H.I.E.L.D. and the energy of Electro to collect the DNA of other Spider-Men. Spider-Man follows his enemy to the futuristic world of Marvel 2099 (which is drawn in CGI) and helps boost the confidence of Spider-Man 2099. Then he travels to a gender-swapped universe and teams up with Spider-Girl to defeat their world's versions of the Green Goblin.

As Spider-Man continues chasing Green Goblin across the Multiverse, he lands in a medieval-based world where he helps Spyder-Knight take down the Alchemist (the medieval version of Doctor Octopus) and his Kraken creation to save York. Then, his last stop before heading back home is an alternate version of the Ultimate Universe where he helps Miles Morales overcome the guilt of being unable to save his world's Peter Parker from death and fight the Ultimate Green Goblin.

After Spider-Man finally ends up back in his own universe, he finds Green Goblin has injected himself with the Spider-Men DNA from all the universes to become the Spider-Goblin. With Electro's help from the Siege Perilous, he summons all the Spider-Men dubbed Web-Warriors to battle the Spider-Goblin and save New York even when Electro plans to destroy it.