2019
S02E13 finale
A former CIA operative (Cumming), who has since built a "normal" life as a gifted professor and writer, is pulled back into his old life when the NYPD needs his help to stop a serial killer on the loose.
Dylan and Lizzie investigate the murder of a successful businesswoman who attempted to prolong the life span of humans; Dylan and Andy continue their adoption search; Detective Ryan Stock from Nebraska arrives to hunt for a potential serial killer.