Today's episode of The Falcon and The Winter Soldier picks up six years ago in Wakanda, where we find Ayo reciting HYDRA's code words to Bucky as he sits by a campfire. He's not convinced it will work but breaks down when he manages to hear all of them without becoming the Winter Soldier again. In the present day, he and Ayo talk, and she reminds him of everything Zemo has done. Giving him eight hours until the Dora Milaje will come for the man who murdered King T'Chaka, he returns to Zemo's apartment and fills him and Sam in on what's happening.
Zemo has an interesting take on what it means to be a super soldier, and believes that Karli Morgenthau is a supremacist who will not stop until either she, or Sam, are dead as The Falcon is convinced he can help her. The trio searches for the Flag-Smashers with no luck until Zemo talks to a child and finds out when and where Donya's (the woman who raised Karli) funeral is taking place. We're reminded that he lost his son, and he relays what he's learned to Sam and Bucky...without telling them all the details because he knows they'll just hand him over to Ayo. Sam reaches out to Sharon Carter for help with a satellite, while Karli retrieves what's left of the super soldier serum. Hours later, Captain America and Battlestar catch up with Sam, Bucky, and Zemo, and they agree that Sam should try to talk Karli down before they all move in.
Sam actually manages to get through to her, but an increasingly unhinged John Walker decides that he's going in, and after handcuffing Zemo, he makes it clear how much he resents Bucky for having the serum in him. As you might expect, the new Cap screws everything up, while the Baron is able to escape and shoots Karli before destroying what's left of the serum. He's taken out by a well-placed shield to the face, and it's then Walker finds one last vial. Back at Zemo's apartment, Ayo and the Dora Milaje arrive, making short work of...well, everyone. Walker is particularly humiliated, but in all the commotion, Zemo escapes into the sewers and vanishes. Talking to Battlestar, a beaten Walker later ponders taking the serum, while back in the U.S., Sarah Wilson hears from Karli who threatens her kids and tells her to pass on a message to Sam (her real plan is to kill Captain America).
Sharon comes through for Sam and Bucky, and the heroes all move in to capture the Flag-Smashers. Battlestar is captured, and Cap shows off his newfound superhuman strength. However, just as Karli is about to get the better of John, Lemar throws himself in the way and takes a blow from the villain that instantly kills him. Cap loses it, chases down a Flag-Smasher, and very publicly beats him to death with his shield. As he stands there with Steve's shield covered in blood, a horrified Karli watches from a distance, as do Sam and Bucky.