After a powerful freak storm, close to a coast guard base, a mysterious sea vortex has formed from the ocean depths, a giant whirlpool that consumes everything in its radius.

Merchant ships caught off guard in the mysterious storm have drifted into the vortex's watery grip. Some ships escaped the danger. Other ships, heavy with cargo, have run out of fuel, floating perilously close to the edge of oceanic oblivion as the vortex draws them closer.

The authorities have commanded you to resupply the stranded ships around the vortex with a fuel-dropping helicopter.

Sensing opportunity, sea faring pirates have converged into the local waters seeking to loot the vulnerable ships. To combat the pirates during the re-fuelling mission, your helicopter has been specially equipped with a cannon and missile launcher. This mission will test your navigation and combat skills to the utmost.