From today through December 31st, Star Trek Online captains can face off against the Tzenkethi during a special Red Alert event. During the Tzenkethi Red Alert, teams of five are tasked with stopping the "genocidal Tzenkethi" from unleashing a super weapon at unprepared planets.
The genocidal Tzenkethi will be unleashing a new super weapon at unsuspecting planets while you and 4 allies will have to do everything you can to prevent the catastrophic destruction. If you don’t work together, the deaths of billions will be on your hands.
The event is for level 50-60 players of all factions. Like all Red Alerts, this TFO rewards 35 marks, and has no cooldown.
Check the details on the Star Trek Online site.