In the second graphic novel in the Mighty Marvel Team-Up series, Spider-Man must join forces with the super genius super hero team: the Fantastic Four! During a morning of doing good deeds and super heroing, Spider-Man is interrupted by the Fantastic Four and Namor. The great underwater city of Atlantis has disappeared, and the heroes need Spider-Man's help to find it! While Spider-Man is unsure if his abilities can help him find the city, he takes on the mission hoping not to disappoint his heroes. But when this mission takes him into the Quantum Realm, Spider-Man realizes that more than just a city has gone missing and that he might need more than just super powers to save the day!