Helio was among Maelstrom
's Minions who were dispatched to the Hydro-Base to steal the Anti-Terrigen Compound, which was developed by Mister Fantastic
, and the Inhumans
. After securing the compound and projecting it into the Atlantic ocean, Helio, Phobius
were engaged in combat by Thing
, and Stingray
while trying to retrieve the compound for a second time. Helio and the others were captured by the heroes. Falon, obtained the compound and returned it to their master Maelstrom.