Teenage math whiz Kenji Koiso agrees to take a summer job at the Nagano hometown of his crush, Natsuki. When he arrives, he finds that her family have reunited to celebrate the 90th birthday of their matriarch. His job: pretend to be Natsuki's fiancé. Meanwhile, his attempt to solve a mathematical equation causes a parallel world's collision with Earth.
Summer Wars explores themes of card game, artificial intelligence (a.i.), computer. A blend of Animation and Science Fiction, it is available to stream for free in HD on Ernax — no account required.
Genre: Animation, Science Fiction
Runtime: 114 min
Director: Mamoru Hosoda
Writers: Satoko Okudera
Cast: Ryunosuke Kamiki, Hitomi Miyauchi, Mitsuki Tanimura, Sumiko Fuji, Ayumu Saito, Takahiro Yokokawa, Kiyomi Tanigawa, Mutsumi Sasaki, Mieko Nobusawa, Takuya Kirimoto, Sakiko Tamagawa, Ichiro Nagai
Rating: 7.5/10 (1,087 votes)
Country: Japan
Language: Japanese
Themes: card game, artificial intelligence (a.i.), computer, hacker, virtual reality, family holiday, adult animation, cybercrime
Stream Summer Wars full movie online free in HD on Ernax. No subscription or sign-up required. Watch Summer Wars free without Netflix, Amazon Prime, or any paid service.