Rubincon

While the Athena is on her own, Vance and Thok reveal that Braka is organizing a cartel of non-member worlds to pillage the Federation. Braka catches up and captures Ake and Anisha, before seemingly destroying the Athena. The Doctor projects an illusion of a destroyed ship, but is left glitching and unable to communicate clearly. As Braka holds a trial for the Federation, Reno and the cadets work together to repair the ship, track Braka and bring down the wall. Anisha and Ake face their mutual past with Caleb joining them to buy more time. Ake and Caleb expose the fact that the destruction of Braka's homeworld, for which he blames the Federation, was caused by Braka's father, discrediting him. SAM is able to decipher the Doctor's words and deactivate the mines, and Vance arrives with the entire fleet to force the Venari Ral to surrender and to arrest Braka.

Summary from Wikipedia, CC BY-SA 4.0.