The year is 2110 and the entire planet has been taken over by the Roboidz. Led by our intrepid hero, Caleb, four brave adventurers from the 21st century compete in tough missions throughout Future Gate, the enemies' stronghold. Their aim is to steal as many bio-rods as they can from the evil Roboidz and zombie-like Shades. But will Caleb and his recruits, Phoebe, Kelsey, Paice and Hannah, finally restore peace to our post-apocalyptic land or will the cybernetic monsters take over?