The subplot sees Detective Jun-ho attempting to find the mystery island where the games take place by traveling by boat with a crew of men led by Captain Park.
In Episode 7 — aka the final episode of Season 2 — we learn that the captain is actually not as innocent as he seems after he kills one of the crew members who catches him toying with the drone they’ve used to capture footage of their discoveries.
Season 2 ends with the heartbreaking murder of Gi-hun’s best friend, Jung-bae, who is shot by The Front Man in order to punish Gi-hun for leading the rebellion.
However, Season 2 concludes with no actual resolution to any of the big story arcs. For example, Gi-hun does not find out that Player 001 is actually the Front Man, and we do not see what happens on the boat after the aforementioned crew member is killed.