As a result of the events of Absolute Zero (2001), Dr. Selig has been moved into protection. Bennet is still curious about what Selig was up to and asks Zeta about it.
During the interrogation at the NSA headquarters, Zeta morphs into people he had morphed into before: the Asian man in Fenton Botanical Gardens from West Bound (2001), Roland De Fuentes from The Next Gen (2001), Miss Martel from the Batman Beyond (1999) episode Zeta (2000), Agent West, and the elderly lady on the train from "West Bound".
When doing a scan of Zeta's holomorphic records, the NSA Agents find an unrecognizable circuit module that wasn't originally from Project Zeta an unlike any the government uses.