In of Once Upon a Time , titled " The Brothers Jones ," the narrative centers on the complicated bond between Killian (Hook) and his brother Liam . The Underworld Reunion

Flashbacks reveal that their bond was tested years ago on a merchant ship heading into a storm. To save their lives and secure his dream of being a Navy man, Liam made a deal with . He "sold" the lives of his crew to ensure his and Killian's survival, a secret he carried until his death. Key Subplots

In the Underworld, Hook is reunited with Liam, who is working as a bartender. Liam appears as the heroic figure Hook always idolized, but Emma remains skeptical of his intentions. He claims to have the tools necessary to defeat Hades, though Emma's intuition leads her to discover he is hiding a darker truth.