WARNING: The following contains spoilers for The Falcon and the Winter Soldier Episode 3, "Power Broker," now streaming on Disney+.

The latest episode of The Falcon and the Winter Soldier saw the two titular heroes break Helmut Zemo out of prison to aid them in their quest of tracking down the source of the new Super Soldier Serum. The three men headed to Madripoor, where they encountered Sharon Carter and tracked down Dr. Wilfred Nagel, the man behind the newfangled serum that powers the Flag Smashers.

As the unlikely trio boarded the surprisingly wealthy Zemo's plane, the Machiavellian criminal stole and inspected Bucky's list of people to whom he wants to make amends. After Zemo asked about "Nakajima," Bucky threatened to kill Zemo if he touched it again. Sam recognized the small notebook as the one that once belonged to the original Captain America, Steve Rogers.

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The notebook first appeared during the opening scene of Captain America: The Winter Soldier, when the two future friends introduced themselves after Steve lapped Sam multiple times during an early jog in Washington D.C. (and sparking the recurring line, "on your left"). In order to catch up on his years under the ice, Sam suggested that Steve listen to Marvin Gaye’s Trouble Man album. Steve wrote down the suggestion in a small notebook, which contained other pop culture milestones and historical events that he wanted to research. Among the notes were I Love Lucy, the Moon Landing, Star Wars, Nirvana and more, at least in the American version of the film.

The notebook had also been previously highlighted in the debut episode of Falcon and Winter Soldier, though its connection to Steve was not yet revealed. Bucky had been using the notebook as a part of his ongoing therapy, keeping track of those he wronged as the Winter Soldier and crossing off names when he had in some way righted those wrongs. He crossed corrupt Senator Atwood's name off after he brought her to justice, but one name he hasn't crossed off yet is "Nakajima." Bucky had killed a young man named RJ Nakajima, and had since befriended the deceased man's father, Yori. So far, Bucky hasn't been able to bring himself to confess his role in RJ's death to Yori.

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After Bucky reclaimed the notebook from Zemo, the villain surmised the correct purpose of the list of names. Sam recognized the notebook as Steve's, and asked if Bucky had ever listened to the Trouble Man album he recommended. Bucky gave an underwhelming review, saying that he "liked it" but that he preferred music from the 1940s. Shockingly, even Zemo recognized Trouble Man as a "masterpiece," with Sam begrudgingly agreeing with the villain. Given Bucky's admission last episode about wanting to prove Steve right about his rehabilitation and Sam's potential, the two men's differing opinions on Marvin Gaye's iconic album is yet another point of contention that makes the duo such an odd couple.

Putting aside the connection to Steve Rogers, a specific name on the list might tease an upcoming decision that Bucky will have to make. Helmut Zemo's name has been shown on the list, though it was actually Zemo who wronged Bucky. During the events of Captain America: Civil War, Zemo framed Bucky for many crimes, including the murder of King T'Chaka, and reactivated the Winter Soldier with commands from the HYDRA manual. Despite Bucky's trust in Zemo to aid them in their mission, he might have to make a decision about how – or if – he ultimately crosses Zemo's name off of the list.

Directed by Kari Skogland, The Falcon and the Winter Soldier stars Anthony Mackie, Sebastian Stan, Emily VanCamp, Wyatt Russell, Noah Mills, Carl Lumbly and Daniel Brühl. New episodes debut on Fridays on Disney+.

KEEP READING: A Falcon and Winter Soldier Guide: News, Easter Eggs, Reviews, Recaps, Theories and Rumors