In August 2019, Whedon and Tancharoen indicated that there would be a connection to the MCU in the final season. The various time periods visited in the season allowed the writers to incorporate different Marvel-related Easter eggs. In the third episode, which features Daniel Sousa, references are made to the second season of Agent Carter, including the defeat of Hugh Jones and the Council of Nine. The fifth episode depicts "Project Insight", a major plot point in Captain America: The Winter Soldier (2014), as taking place in the 1970s due to the Chronicoms changing history.
