ENT: Bounty, The Expanse

In Bounty, Archer is taken in by a Tellarite who charms him with his friendly, helpful attitude ( yes, we're suspicious already). The Tellarite turns out to be a bounty hunter working for the Klingons, who had impounded his ship some years ago. When he finds out what the Klingons have done to his ship, his loyalties change.
The Expanse starts out with a probe launching a horrific attack on Earth. When watching the opening, we debated whether it was actually Earth- as the DM pointed out, "if such an attack had taken place on Earth, it would have been mentioned. Surely they wouldn't add such an event to Earth history retroactively." But oh yes, they would. The Suliban arrive and take Archer to hear a message from the future- the attackers are the Xindi, and it a a preemptive strike against an attack the Federation will make in 400 years. The season ends with Archer and the crew of the Enterprise in search of the enigmatic Xindi.