Shield of Tomorrow is a webseries of actual play sessions of a Star Trek Adventures gaming group, produced for Geek & Sundry, which were streamed on the gaming site Twitch and uploaded to YouTube. The series ran from 2017 to 2019, and produced 53 episodes, and several specials.
The series focused on the crew of the USS Sally Ride, on an exploration mission in the Shackleton Expanse, the setting of STA's Living Campaign. On several occasions, the producers of Shield of Tomorrow partnered with Star Trek Online for various promotions, and subsequently the Sally Ride and her crew were featured in the world of the online game.
A spiritual successor to Shield of Tomorrow, called Clear Skies was launched in early 2020, independent of Geek & Sundry.