In the not-too-distant future, a race of aliens called the "The Red Team" invades Earth. Battles rage on the ground, in the water and in the air. No army in the world can resist the invaders. No army, but one snail. Major Shell Cage, who died in battle, but the impossible happens - he finds himself in a time loop. Time after time he arrives in the same battle, fights, dies and resurrects again and again. And each repeated battle brings him closer to unraveling how to defeat the enemy.

We know very little about the heroism of Major Shell Cage, but his last transmission was partially deciphered:

“I’ve done the same thing so many times and already lost track of time…

On my first try, I was able to get a unique █████████ !

On my second try, I got an incredible █████████ !

For the third attempt, I received the vital █████████!

For the fourth and subsequent attempts, I got █████████!”