Grayson Hunt is part of the Dead Echo team, commissioned by Star General Sarrano to take out criminals - until they discover that Sarrano is using them to kill innocent civilians. Realizing they have been deceived, Dead Echo team deserts and become space pirates, escaping into the farthest fringes of space to avoid Sarrano's forces. Ten years later, in an attempt to take revenge on Sarrano, Grayson rams his ship into Sarrano's, causing both ships to crash on the tropical planet of Stygia, inhabited by dangerous mutants and carnivorous plants.

In this outrageous sci-fi shooter, players perform ludicrously creative kills, chaining together weapons and environmental objects to eliminate their enemies in the most ingenious ways possible, all while trying to exact the final revenge on Sarrano.