Superman & Lois season 4, the final season of the series, is set to debut on The CW on Oct. 17 with a double-episode night.

It's the end of an era for The CW as the last of its DC-based TV series is preparing to sign off for the final time. Launching in 2021, the series has seen Tyler Hoechlin and Elizabeth Tulloch reprising the roles of Superman and Lois Lane that they had previously played in the various Arrowverse series.

Despite continuing on in the roles, these were not the same characters as seen in the Arrowverse appearances and exist in their own universe.

The final season of Superman & Lois marks the end of a lengthy partnership between The CW and Warner Bros. TV that began in 2012 with Arrow and went on to span a total of six series in the Arrowverse, and one outside of it. The changes were brought about when Nexstar purchased the network and made it clear it would be focusing on lower-cost fares to fill its primetime hours.

Superman & Lois season 4 will debut on Oct. 17.