"Hung Jury" - In the 2410s, Captain Harry Kim of the USS Rhode Island is on trial for a major incident on the Federation-Klingon border that triggered a new Federation-Klingon war. While participating a task force that included Captain La Forge of the USS Challenger, Captain Chakotay of the USS Voyager Captain Beverly Crusher of the Pasteur, and Nog of the Nova-class Defiant, the lead ship - commanded by Admiral Riker - was destroyed by Klingon battlecruisers while trying to protect a flotilla of Terellian medical ships. This led to a major battle where Klingons were able to bring in reinforcements from former Romulan space. It is believed that Harry failed to provide adequate cover for all the other ship, leading to every one of their destruction. While Chakotay and his wife Tessa, and the Terellian flotilla captain Androna testify in his defense, La Forge, Nog, and Beverly all testify against Harry, claiming he got their crews killed. Admiral Janeway presides over the preceding, with Tuvok, Tom, B’Elanna, and the Doctor also on the panel. But before she can render a verdict, Ducane beams Harry away onto the Relativity.
Ducane basically explains to Harry that he must delay an early retain of Voyager to the Alpha Quadrant to change history; an early return led to a series of interstellar unfolding in an unfavorable way for the Federation, culminating in a devastating, multi-generational war between the Federation and the Klingon Empire that spirals wildly out of control when various unaligned species start taking sides. Before he can send Harry back to prevent it, Admiral Janeway arrives in the future, aiming to bring Harry back to his time, where they will render him guilty. A phaser fight breaks out on the Relativity as Harry is beamed to Voyager in the 2370s. Harry is beamed into one of the nacelles and managed to shut it down with a tool given to him by Ducane, days before Voyager were to arrive in a system that had their own slingshot. As Voyager does not arrive in the system in time in this reset timeline, a major war breaks out within the system - stemming from jurists that where hung by an oppressive government, which the Voyager had originally prevented, and thus allowed them to use the slingshot to foster good relations - forcing Voyager to change course.
Next episode – “Honeymoon Phase”