Summer Spectacular in Shiodome was the first Summer Spectacular professional wrestling event produced by Frontier Martial-Arts Wrestling (FMW). The event took place on August 4, 1990 in the Shiodome in Tokyo, Japan. It was aired as a television special on Samurai! TV. The event was a counterpart to World Wrestling Federation's SummerSlam event in August.

Seven matches were contested at the event. In the main event, Atsushi Onita successfully defended the WWA World Brass Knuckles Heavyweight Championship against Tarzan Goto in the first-ever no ropes exploding barbed wire deathmatch. Other predominant matches on the card featured the team of Katsuji Ueda, Mr. Pogo and Ricky Fuji defeating Kim Hyun Han, Lee Gak Soo and Sambo Asako, and Noriyo Toyoda defeating her former Outbreakers partner Megumi Kudo in a street fight.

Atsushi Onita was the top star of FMW since the promotion came to existence in 1989 and Tarzan Goto was his right-hand man and frequent ally. Goto grew irate at Onita as he felt that Onita was toning down professional wrestling by teaming with karate fighter Lee Gak-soo against Sambo Asako and Mitsuteru Tokuda on June 2. Goto responded by bringing in Mr. Pogo to FMW on the same show during his match against Ricky Fuji, which angered Onita. Onita and Goto began feuding with each other, resulting in Goto turning heel, setting up a match between Onita and Goto for Onita's WWA World Brass Knuckles Heavyweight Championship at Summer Spectacular. Their first match against each other was an empty arena match, which took place on June 24, which Onita won. The popularity of street fights and barbed wire deathmatches led Onita to introduce a new speciality in his title match with Goto, which was adding explosives in the barbed wire, in which if a wrestler was sent into the wire then explosions would be set off to spark crowd interest.

...
Wikipedia