Immortality Boma awakens on its own tormenting people with its egg form until it hatches and Zimba joins in its battle. The four Turboranger minus Red Turbo (who was trying to heal from a brutal battle with Yamimaru) try to face it, but it seals all of them within eggs to mutate them into new Immortality Boma soldiers. Forced into facing the Boma Beast instead of recovering, Riki tries to face it down but his injuries and its invincible armor prevent him from making any dent on it until Yamimaru decides to help him escape, wanting Red Turbo as his prey for only himself. After a tough battle, Riki finally gains the sickle to destroy its eggs and free his teammates before they become fully mutated; then takes Yamimaru's advice to attack its mouth to hurt it long enough for a V-Turbo Bazooka.