Sarge Hawk and Colonel Grimm narrowly escape the Tan attack on their Green base via helicopter. Along the way, they spot a suspicious Blue tank in a nearby town, prompting Hawk to investigate. Following a Blue Spy, Hawk enters an illuminated cave leading to a vast, gigantic world. Trapped in a confined area, the Spy is captured, providing vital information about Plastro’s plans, the "Portals," weapons, and the Heroes’ locations.
Hawk successfully rescues Hoover, Riff, Thick, and Shrap. Colonel Grimm informs him of Plastro's ultimatum: "Surrender or be destroyed." To protect the Green Nation, Hawk must destroy the final portal located in the heavily guarded Fort Plastro. After an intense solo battle, Hawk reaches the portal, completing his perilous mission to save his comrades and counter the Tan threat. The story showcases interdimensional challenges, high-stakes battles, and Hawk's heroic determination.
