Steins;Gate 0

With the destruction of the time machine signaling the start of World War III, Rintaro gives Maho and Daru the knowledge they need to complete the time leap machine. With some encouragement from Amadeus Kurisu, Maho manages to complete the time leap machine, which Rintaro uses to leap back in time to before the incident. After urging Maho and Daru to hack into Leskinen's computer and retrieve Amadeus' data, Rintaro rushes to Mayuri and Suzuha to warn them of what's about to happen, learning of their plan to convince his past self to pursue Steins;Gate again. Just as Rintaro urges them to go, he is attacked by another soldier, revealed to be Reyes, who is then shot by Leskinen. This ultimately leads to the time machine getting destroyed again, prompting Rintaro to once again keep time leaping until he can save Mayuri and Suzuha.