Invincible Season 4 Release Date, Cast, Trailer & Plot Details Revealed

Fans of Mark Grayson won’t have to wait much longer: Prime Video has locked in Invincible Season 4 for an eight-episode run that kicks off with a triple-episode premiere on 18 March 2026, followed by weekly drops each Wednesday through 22 April 2026. Release date & full episode schedule • Episodes 1-3 – 18 March 2026 • Episode 4 – 25 March 2026 • Episode 5 – 1 April 2026 • Episode 6 – 8 April 2026 • Episode 7 – 15 April 2026 • Episode 8 – 22 April 2026 Plot: the Viltrumite War comes to Prime Video Season 4 tackles Robert Kirkman’s fan-favourite “Viltrumite War” arc, pitting Invincible, Atom Eve and an expanded Guardians lineup against a full-scale Viltrumite invasion. Expect marquee comic beats such as Space Racer’s intervention, Mark’s uneasy alliance with Allen the Alien and Omni-Man’s path to redemption. ScreenRant also confirms sub-plots like Eve’s unstable powers and Invincible’s first encounter with Dinosaurus, signalling that the show will keep mixing straight-from-the-page moments with brand-new twists. Cast: who’s returning and who’s new • Steven Yeun – Mark Grayson / Invincible • J.K. Simmons – Nolan Grayson / Omni-Man • Sandra Oh – Debbie Grayson • Gillian Jacobs – Atom Eve • Seth Rogen – Allen the Alien New voices join the fray for season 4’s villains, including the fan-dreaded Conquest and a mysterious original antagonist teased in early footage. Trailer & first-look teasers Prime Video’s sizzle reel shows Mark in full planetary-war mode, Omni-Man sporting battered Viltrumite armour and a blink-and-you-miss-it shot of Battle Beast—fuel for speculation that episodes 6-8 will adapt the comics’ bloodiest battles yet. Expect a longer, story-heavy trailer to drop during Amazon’s spring showcase. How to stream Invincible Season 4 will be available exclusively on Prime Video. New users can binge the first three seasons with a 30-day free trial before the March launch, ensuring every Easter egg in Season 4 lands. Why Season 4 matters The Viltrumite War arc marks a narrative midpoint in Invincible’s saga; its outcome reshapes alliances and sets the stage for multiverse-level threats teased by Kirkman. With production already eyeing a fifth season, Season 4’s success could secure Invincible’s path to a definitive finale that matches the scope of the comics. SEO takeaway Searches for “Invincible Season 4 release date,” “Invincible Season 4 trailer,” and “Invincible Viltrumite War” are spiking. Bookmark this page for weekly recaps, post-credit breakdowns and cast interviews as each episode lands.