A.T.O.M.: Alpha Teens on Machines

The team is assigned a mission that involves investigating a spooky ghost ship on Halloween night. Pressed against time to make it back to shore in time for the night's festivities, they split up aboard the ship in search of clues. One at a time, more than half the team gets hypnotized into becoming zombies. It is revealed that Bonez, a villain not dissimilar to the Grim Reaper, has been zomibfying trespassers who come to the Underworld, a sunken city forgotten by time beneath Landmark City. Faced against an enemy which now includes their own members, the embattled team must find a way to defeat Bonez while recusing their possessed friends unharmed.