

Big X
Overview
Invited to Nazi Germany during World War II, Dr. Asagumo is asked by Hitler to collaborate with him on the research of the new weapon "Big X". Concerned about the possible effects of the completion of Big X, Dr. Asagumo intentionally delays the progress of the research, conspiring with his co-researcher, the devious Dr. Engel. Immediately before Germany is defeated by the Allies, Dr. Asagumo implants a card inscribed with the secret of Big X in his son, Shigeru, and is then shot to death by the German army. Twenty years later, the card is discovered in the body of Shigeru, who is then living in Tokyo. Soon, an organization claiming alliance with the Nazis appears, steals the card, and completes the Big X project. Dr. Engel's grandson has joined the Nazi Alliance. The completed Big X is then revealed to be a drug that can expand the human body without limitation. Recovering Big X from the enemy, Shigeru's son Akira fearlessly challenges the Nazi Alliance and Hans Engel, who are plotting to conquer the world. Note: Most of the series is lost media. Only episodes 1, 11, 12 & 40-59 are known to still exist.
Advertisement
AdSense · 320×100
Episodes · 59
Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
Episode 12
Episode 13
Episode 14
Episode 15
Episode 16
Episode 17
Episode 18
Episode 19
Episode 20
Episode 21
Episode 22
Episode 23
Episode 24
Episode 25
Episode 26
Episode 27
Episode 28
Episode 29
Episode 30
Episode 31
Episode 32
Episode 33
Episode 34
Episode 35
Episode 36
Episode 37
Episode 38
Episode 39
Episode 40
Episode 41
Episode 42
Episode 43
Episode 44
Episode 45
Episode 46
Episode 47
Episode 48
Episode 49
Episode 50
Sign in to track watched episodes
🎬 Trailer
Characters & Voice Actors

Akira Asagumo
MAIN
VA: Yoshiko Oota

Big X
MAIN
VA: Akira Shimada

Irina Engel
SUPPORTING
VA: Mariko Mukai

Nina Belton
SUPPORTING
VA: Fuyumi Shiraishi

Hans Engel
SUPPORTING
VA: Keiko Yamamoto

Dr. Hanamaru
SUPPORTING
VA: Ichirou Nagai

