Uchu Sentai Kyuranger vs. Space Squad

Space Sheriff Shu Karasuma and Toma Amagi locate Space Ninja Demost in Genmakuu and move to arrest him. Demost slips through a portal to another dimension, escaping while Shaider pursues the fleeing target.

Demost escapes through the interdimensional portal and enters the Kyurangers' universe. Shaider continues the pursuit, but the chase spans across dimensions as Demost settles into a new arena of conflict.

In the Kyurangers' world, the team has been rebuilding for years since Don Armage's defeat. Under Tsurugi Ohtori's leadership, some members have gone their separate ways, while others stay entrenched in old loyalties.

Shou Ronpo reveals that Hammie has stolen four newly developed Neo Kyutamas, triggering a split within the Kyurangers. Some factions want Hammie arrested, while others, including Lucky, want to understand her motive.

Hammie brings the Kyutamas to Demost, who uses them to resurrect four past Sentai villains — Mele, Juzo Fuwa, Basco Ta Jolokia, and Escape — to serve under his command. The revived foes begin sowing chaos to undermine the Kyurangers.

Demost dispatches the revived villains to launch hit-and-run assaults against the Kyurangers. The sudden attacks strain their defenses and erode Hammie's credibility among her allies.

Witnessing Hammie's predicament, Space Sheriff Geki Jumonji and Shu Karasuma decide to lend their support to the Kyurangers. Their involvement brings additional Space Squad expertise to the fight against Demost.

It is revealed that Hammie is being extorted by Demost, who is holding Hammie's mentor hostage from the Jark Matter era. The Space Ninja forces Hammie to comply with Demost's orders, including an assassination plot against Tsurugi.

During a public announcement where Tsurugi steps down, Hammie hesitates as Geki and Shu reveal Demost's coercion. Naga and Balance manage to rescue Hammie's master, adding weight to the argument against Demost.

Mele reveals her true loyalty by sacrificing herself to protect Hammie from Demost's attack. Demost still attempts to kill Hammie, escalating the confrontation and raising the stakes for the heroes.

The Kyurangers, along with Gavan and Shaider, defeat Demost. Juzo, Basco, and Escape disengage, returning to the afterlife as Demost's spell is broken and his control collapses.

Geki and Shu escort Demost back to their universe, where Jiraya informs them of a massive terrorist attack led by Genmakuu. The warning prompts discussion about recruiting new Space Squad members to handle future threats.

The events leave the Space Squad contemplating expansion and the recruitment of new members. The team resolves to protect multiple universes from Genmakuu-style threats and other dangers on the horizon.