In the poignant finale of A Gentleman in Moscow, titled "Adieu," we witness the culmination of Count Alexander Rostov's (Ewan McGregor) meticulously planned escape for his daughter, Sofia (Beau Gadsdon). The episode is a heart-wrenching display of love, sacrifice, and the unyielding spirit of a man determined to secure a brighter future for his loved ones amidst the ever-changing political landscape of Russia.

The episode opens with the older Sofia narrating the complexities of Rostov's plan to free her from the Soviet Union. Rostov's meticulous preparations are matched only by his anxiety, as he grapples with the reality that the young girl he has raised is now a woman, and he must let her go to ensure her safety and her future. His plan involves Sofia escaping during her performance in Paris, a daring move that requires her to cut her hair, change her clothes, and blend in with the audience to evade the watchful eyes of the Soviet authorities.
As Sofia prepares for her departure, Rostov shares a special dinner with her in their secret room, imparting three final lessons that have guided his life: mastering one's circumstances, the surest sign of wisdom being cheerfulness, and the joy he will find in the adventures she will have in her new life. It is here that Sofia realizes Rostov does not plan to join her in America, a revelation that underscores the depth of his sacrifice.
The plan unfolds with Sofia's performance in Paris, where she must change her appearance and escape undetected. Meanwhile, Rostov and Anna (Mary Elizabeth Winstead) prepare to leave the Metropol Hotel, their love story having blossomed within the confines of Rostov's imprisonment. Rostov's plan involves a distraction at the hotel, signaling them by having the US embassy call all the phones at the hotel, allowing him to walk out unnoticed.
However, the escape is not without its challenges. Leplevsky (John Heffernan), the hotel manager, discovers Rostov's plan and attempts to thwart it. In a climactic confrontation, Rostov chains Leplevsky in the hotel's basement, ensuring his silence and preventing him from alerting the authorities.
The episode's climax sees Rostov anxiously waiting for the signal that Sofia has made it to safety. When the phones in the hotel ring incessantly, he knows she is free. With a smile, he walks out of the hotel, leaving behind the only life he has known for decades.
The finale ends on a bittersweet note, with older Sofia narrating the uncertainty of Rostov and Anna's fate. While it is unclear what exactly happened to them, the final scene, filled with black apples from a family legend, suggests a peaceful life together in Rostov's ancestral home. This scene, however, is revealed to be Sofia's imagination, a hopeful fantasy of her parents living out their days in freedom and peace .
"Adieu" is a fitting end to Rostov's journey, a story that has been as much about the heart's capacity for love and the strength of the human spirit as it has been about the historical events that have shaped their lives. The episode leaves viewers with a sense of hope and the enduring power of love, even in the face of uncertainty and loss.