We really need to start locking important things up. A terrorist organization called the Ptolemaic Army has stolen top-secret schematics for Metal Slugs - these next-gen super vehicles are in the hands of evildoers! Luckily Marco, Tarma, Eri and Fio are on the case... and by “on the case,” we mean “shooting everything they don’t blow up.” Now get your mission on and make things go boom, soldier!
