When The Expanse season 2 begins, Holden and Miller are still recovering from the radiation sickness they contracted in season 1's finale, suggesting a period of a few days has passed in between seasons. The Expanse season 2 once again takes place over a shorter period, but with more interplanetary travel to consider this time around, may push the timeline into 2351. The Expanse. Sci-Fi TV. Two centuries in the future, a missing person links an asteroid belt detective, the captain of an ice freighter and a diplomat trying to avert a war. Starring: Thomas Jane,Steven Strait,Cas Anvar. Creators: Mark.