Aired February 20, 2025: Mark’s (Adam Scott) reintegration spirals as he seizures, his innie and outie worlds colliding with visions of Gemma (Dichen Lachman). Helly (Britt Lower) and Mark’s bond deepens with a clandestine encounter, while Dylan (Zach Cherry) guards Irving’s Exports Hall clue. Outside, Irving (John Turturro) dines with Burt (Christopher Walken) and Fields (John Noble), uncovering timeline discrepancies hinting at Lumon’s secrets. Tensions rise as trust frays and revelations loom in this haunting installment.