Starfleet Academy centers on the mystery surrounding Deep Space Nine's beloved captain Benjamin Sisko — and even includes a cameo of sorts from actor Avery Brooks.

There was a vague promise that Sisko would return one day, but Starfleet Academy has confirmed (after 27 years of waiting) that never happened. In Star Trek: Starfleet Academy episode five, it was revealed that Sisko never returned, and his fate remains a mystery to Starfleet. As far as they’re concerned, he just went missing in the Fire Caves.

Star Trek’s Starfleet Academy dropped an episode centered entirely around the commander of Deep Space Nine, Captain Benjamin Sisko. It’s titled “Series Acclimation Mil” and the plot involves Cirroc Lofton returning as Jake,

The latest episode of Star Trek: Starfleet Academy centers on the mystery surrounding Deep Space Nine's beloved captain Benjamin Sisko — and even includes a cameo of sorts from actor Avery Brooks.