J.A.K.Q. Dengekitai (ジャッカー電撃隊 Jakkā Dengekitai?, lit. Jacker Blitzkrieg Squad) is the second Super Sentai series. It aired from April 9, 1977 to December 24, 1977. Created by Shotaro Ishinomori, it ran for 35 episodes. The title given to this series for international distribution by Toei is The Jackers.
As a Super Sentai
J.A.K.Q. was the final Sentai series to use only the "Sentai" name. Battle Fever J was the first series to use the "Super Sentai" name. Prior to the 1995 series Ohranger, J.A.K.Q. and Gorenger were not recognized as "Super Sentai" series. During episode 1 of Turboranger, Battle Fever J was introduced as the first Super Sentai. It was not until the 1995 series Ohranger that Gorenger and J.A.K.Q. were included as the original first two series.