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.

The employees can choose to undergo a “severance” procedure, which means that outside the walls of Lumon, they cannot remember their work day, and when they’re at work, they cannot remember their outside lives.

The pop-up began when a large glass box appeared in Grand Central's Vanderbilt Hall, containing a replica of the four-seated desk from Lumon's Macrodata Refinement department. Hired actors playing Lumon employees sat at their desks, doing Lumon things (by which I mean, sorting numbers while not having a clue what said numbers mean).

Apple TV+ put the cast of 'Severance,' including Adan Scott and Patricia Arquette, in a glass box at Grand Central Station to promote Season 2.

Adam Scott, Britt Lower and Zach Cherry all appeared as their 'Severance' characters for the pop-art. Ben Stiller was on hand for pictures.