This story contains spoilers for Season 1 of “Severance,” streaming on Apple TV+. A recap is available upon request. “Severance” returns on Apple TV+ this Friday, but it’s been nearly three years since the first season of the sci-fi workplace thriller ended on a brutal cliffhanger.

Adam Scott heads up the cast of ‘Severance’ season 2 as Mark Scout, the Lumon employee who has the severance procedure following the loss of his wife. He’s seen here at the premiere of “Hot Tub Time Machine 2” on February 18, 2015 in Westwood, California. He previously starred in ‘Krampus,’ ‘The Overnight,’ and ‘Parks & Recreation,’ among others.

Here's what you should remember from the first season of "Severance" and how certain moments and symbols could foreshadow what happens in Season 2.