The Alien with No Home Planet (帰る星なき宇宙人 Kaeru hoshi naki Uchūjin) is the 25th episode of Fireman.
A spherical spacecraft suddenly appears in the sky and is shot down, leading to investigation by the SAF. Mariko and the others go to search the wreckage, but the Alien Virenus that was riding within flees into the mountains. In accordance with instructions from its home planet, the alien seeks to destroy the earth as it has no way to escape.
- Alien Virenus (First and only appearance)