Ep. 100: Science Ninja pursues Katse to a base where X orders his termination
Aired on August 25, 1974

100
The Science Ninja tracks Katse to a specific base location. Upon arrival, the character X issues a direct command to Katse. This order explicitly instructs Katse to terminate the Science Ninja Team. The narrative focuses on this confrontation and the subsequent directive given by X regarding the team's elimination.
Episodes
- Ep. 96 · The Science Ninja Team infiltrates the submerged Galactor base hidden within a cave.
- Ep. 97 · Leona 3 faces imminent crash as the Science Ninja Team investigates sabotage and missing personnel.
- Ep. 98 · Joe encounters a mysterious woman and faces a new mecha threat while hiding his condition.
- Ep. 99 · The Science Ninja Team infiltrates a base while Joe struggles with impaired vision and self-doubt.
- Ep. 100 · Science Ninja pursues Katse to a base where X orders his termination
- Ep. 101 · Ken and Jun investigate suspicious helicopter activity while Joe recovers his confidence.
- Ep. 102 · A Reversal! Checkmate X!
- Ep. 103 · Joe faces terminal illness and Galactor while racing to find their base.
- Ep. 104 · The Evil Grand Black Hole Operation