J.A.K.Q. Dengekitai

J.A.K.Q. Dengekitai ジャッカー電撃隊 (Jakkā Dengekitai) is the second Sentai series. It aired from April 9 to December 24, 1977. Unlike most of the other Sentai which start out with a team of three or five members, the JAKQ team started out with only four. A fifth member (Big One) appeared in episode 23. J.A.K.Q. Dengekitai was not nearly as popular as Gorenger, only running for 35 episodes. J.A.K.Q. Dengekitai is the second and final Sentai created by Shotaro Ishinomori.

J.A.K.Q. or JAKQ comes from Jack, Ace, King, Queen. The J.A.K.Q. team members are named after playing cards. Their leader goes by the code name of "Joker".

There are no giant monsters or giant robots to fight them in J.A.K.Q. Dengekitai. CRIME uses human-sized monsters assisted by masked soldiers called Crimers. CRIME also has bat-winged aircraft called Devil Sharks.

JAKQ was the second and one of the only two Sentai series to use only the Sentai name. Afterwards, the name "Super Sentai" was used.