A bold proposition for the Staircase Project puts the group at odds. Will weighs his options. Ye returns to a familiar place.

Jin seeks justice after a death rattles the group. Investigators learn of an extremist group devoted to an otherworldly entity ahead of a major summit.

Unsettling events put a group of brilliant friends on edge as a mystery unravels with origins tracing back to China during the Cultural Revolution.

Auggie’s countdown jeopardizes her nanotech work. Jin becomes engrossed in an otherworldly VR game. Ye Wenjie follows through on a radical idea.