A new Vandal shows up and challenges Kalus for the title of Vandal Warlord: Grimian! The combination SmashClaw debuts.

When the team escapes into a desolate zone, they discover a Diad collecting Blue Sentient shells. But when the Diad is captured by a pursuing Kyburi, they must rescue him from the Red Sentient homeworld before the Reds learn of his mission.

When a freak accident causes Sherman and Grimian to switch minds, the Battle Force 5 must rescue Sherman from the Vandals and pull himself together before Grimian relays Earth's coordinates to Krytus.

The Battle Force 5 learn of Grimian's alliance with Krytus! Meanwhile, Tezz's scientific curiosity gets him captured by the Vandals!