In 'Crisis On Infinite Earths' (1985) #8, Flash time travels to the past to destroy the Anti-Monitor's antimatter canon, sacrificing himself.

Feat: Flash (Barry Allen), ‘Crisis On Infinite Earths’ #8

 

 IN CRISES FLASH (BARRY ALLEN)EARTH ONE In ‘Infinite Crisis’ (1985) #8, titled “A Flash Of The Lightning,” Flash performs a super speed feat. On Qward, the Flash frees himself from his prison and stops the Anti-Monitor’s antimatter cannon from destroying … Continue reading Feat: Flash (Barry Allen), ‘Crisis On Infinite Earths’ #8