Invincible Season 5: Everything We Know After That Huge Cliffhanger Ending

The fourth season of Invincible concluded with Mark and Nolan returning to Earth, anticipating the arrival of the escaping Viltrumites. Surprisingly, the Viltrumites are nowhere to be found. Mark becomes increasingly anxious, while Nolan takes Debbie and goes back to Talescria to be with Oliver as he recovers. Eventually, Mark discovers the Viltrumites have been hiding amongst humans, secretly increasing their numbers by having children with them. Separately, Thaedus secretly gives Allen a fully developed version of the Scourge Virus, which poses a huge threat – it could unintentionally destroy all of humanity if unleashed.






