Gon tells the others that Whamon is dead and left his Digiegg behind. Zero goes to fight as Marine Devimon. Marine Devimon starts to beat Zero but Gon comes and saves him. As Zero is in need of air but uses a sand cloud in the water Marine thinks he's heading to the surface but Zero stays below him and beats him. On land Gon then evolves to Ikkakumon. Taichi gets the Tag of the Sea.