Ep. 5: The Science Ninja Team investigates the mysterious ghost fleet haunting the Cemetery of the Sea.

5

ISO ships vanish near the Cemetery of the Sea, prompting Director Andāson and Nambu to request the Science Ninja Team's assistance. The team departs in the God Phoenix to investigate an ocean floor base, where they encounter a mysterious submarine leading them to a graveyard of sunken vessels. Ken suspects these are battleships, causing the team to surface into thick fog. They discover the fog is artificial and destroy its generator, only to face attacks from countless light-ray-emitting disks launched by the ghost fleet. After exhausting their missiles, the team is rescued by three red planes piloted by Reddo Imparusu, who demonstrates superior aerial combat skills. He introduces himself and departs, promising to meet again as the battle concludes.