Good Omens season 3 has been given the green light by Amazon Prime Video, but the final season is going to be very different. Good Omens is based on the novel by Neil Gaiman and Terry Pratchett and follows the angel Aziraphale (Michael Sheen) and demon Crowley (David Tennant), who’ve developed a unique relationship over the centuries they’ve spent on Earth. Instead of following their ordained mission, the duo puts their differences aside to set out to stop the end of the world.