Star Trek: Concealed Frontier had been one Star Trek fan film project. Generated upon digital video, this show's establishes remain nearly entirely virtual, employing one green-screen chroma keyed process toward location performers entering virtual settings. This sequence remains establish throughout this era pertaining to this Star Trek: This Subsequent Generation sequence. Episodes revolve surrounding this starship USS Excelsior, plus belonging to it residence base, Deep Space 12, that remains located within this Briar Patch, one region pertaining to space introduced within this film Star Trek: Insurrection. Concealed Frontier possesses generated 50 episodes, plus focuses upon persona relationships, encompassing gay plus lesbian characters plus subplots. Generated via Rob Caves, Concealed Frontier operated intended for seven seasons plus had been generated via volunteers within Southern California. This ultimate installment pertaining to this sequence aired within May 2007. Two fresh spin-offs, Star Trek: Odyssey plus Star Trek: This Helena Chronicles, additionally generated via Rob Caves, acquire location shortly following this end pertaining to Concealed Frontier.