Super Smash Bros: The S.M.A.S.H War is an upcoming movie, releasing on January 21st, 2019, promoting the 20th anniversary of the Super Smash Bros. franchise. The movie is released with an English language, with subtitles of Japanese showing in local theatres. This next movie, Marvel vs. Super Smash Bros., serves as a prequel, while the following movie, now known as Nintendo vs. SEGA: Fate of the Universes, will release during 2021.
3 years after Super Smash Bros. 4 was released, Sonic the Hedgehog disappeared unexpectedly, without leaving a trace. This forced the main admins of the universe to look for a new SEGA representative, though weren't successful. In the shadows, however, a new army named S.P.E.E.D (SPecial EnEmy Department) are working on an invasion.
In 2019, S.P.E.E.D finally invades, conquering 99.99% of the world, with 0.01% left unconquered, which is controlled by the Smash Resisters, which includes all of the remaining fighters of the Super Smash Bros. universe. With S.P.E.E.D invading through the last seven months, losing contact with Sonic and having the civillains losing hope, Smash Resisters have only a short amount of time until the final phase of the plan is activated. This comes worse as Sonic has been missing for just over 2 years and with Infinite returning, the plan to peace has become much harder.
To make things worse, many villains from the universe join S.P.E.E.D, with a new hedgehog named Bedlam leading all of the troops and soldiers who dedicate their lives to S.P.E.E.D. However, not even the soldiers and troops can recognise the true identity of Bedlam, which can change the whole course of the war...