"Skyers 5" is a science fiction anime series set in a futuristic world where humanity faces an existential threat from an alien race known as the Zorath. The story centers on five young pilots, each possessing unique skills and backgrounds, who are recruited to operate advanced mecha units called Sky Frames. These machines are humanity's last line of defense against the Zorath, who seek to harvest Earth's resources and eradicate its inhabitants.

The protagonist, Kaito Tachibana, is a hotheaded but talented pilot with a mysterious past tied to the Zorath. His leadership skills are tested as he forms the core of the team, which includes Rei Ayanami, a calm and analytical strategist; Haruto Fujiwara, a tech-savvy engineer with a knack for improvisation; Sora Nakamura, a former ace pilot haunted by a tragic mission; and Yuna Hoshino, a compassionate medic with a strong sense of justice. Together, they form Skyers 5, a unit tasked with protecting Earth's last remaining cities.

The narrative unfolds through a series of escalating battles, with each mission revealing more about the Zorath's motives and the true nature of the Sky Frames. The team faces internal conflicts, personal struggles, and moral dilemmas as they grapple with the cost of war and the sacrifices required to protect humanity. Key plot points include the discovery of a hidden Zorath base on the moon, the revelation of a traitor within their ranks, and the eventual uncovering of a Zorath-human hybrid program that blurs the line between friend and foe.

As the series progresses, the characters' relationships deepen, and their individual arcs intertwine with the larger narrative. Kaito's connection to the Zorath becomes a focal point, leading to a climactic confrontation that challenges the team's unity and resolve. The story balances intense mecha battles with moments of introspection, exploring themes of identity, loyalty, and the consequences of technological advancement.

By the end of the series, Skyers 5 must make a final stand against the Zorath's ultimate weapon, a planet-sized entity capable of consuming entire worlds. The resolution hinges on the team's ability to overcome their differences and harness the full potential of their Sky Frames, culminating in a decisive battle that determines the fate of Earth and its inhabitants.