During the repair efforts, Yar becomes close to Castillo, but is unnerved by tense interactions with Guinan. Guinan reveals to Yar that she knows Yar dies a meaningless death in the other timeline, and that the two should never have met. Based on her discussion with Guinan, Yar requests a transfer to the "Enterprise"-C, which is granted by Picard. As the "Enterprise"-C prepares to return through the anomaly, three Klingon battlecruisers attack. With the anomaly becoming unstable, Picard orders the "Enterprise"-D to cover the "Enterprise"-C's withdrawal. The "Enterprise"-D suffers massive systems damage and major crew losses under the Klingon barrage, including the death of Commander Riker, forcing Picard to man the tactical station himself. With the "Enterprise"-D on the brink of destruction, the "Enterprise"-C traverses the anomaly, triggering the return of "Enterprise"-D's original timeline. In the restored timeline, Guinan – the only one subtly aware of what has transpired – asks Geordi La Forge to tell her more about Yar.