Watch Ultimate Spider-Man Episode 17 Online Snow Day.When Phil Coulson wants the heroes to report to the S.H.I.E.L.D. ice base for winter survival training, Spider-Man and his team sneak off for a vacation on a deserted tropical island that Nova found on the S.H.I.E.L.D. database. However, they soon realize that there is an inhabitant on the island who sees them as his new playmates … and does not want them to leave again.
