Timebomb (S02E07)

The Alliance of the Cluster discovers Planet Jungle and plans to destroy it in order to ensnare the forces of the Beast Planet and Blokk. During their mission, they plant explosives, but the living plants plead for assistance. Tekla uncovers that the planet's world engines were ruined ages ago, sealing the fate of its greenery. A sentient plant implores Femur to save a small fragment of the planet's life. Ultimately, Planet Jungle detonates, yet the Beast Planet remains unscathed.