Episode 6, the penultimate installment of Season 2, was made up almost entirely of flashbacks to those five intervening years, with the show revisiting Joel and Ellie nearly every

When you follow that through, it seems pretty clear that the flashback at the end of episode 5 is building up to something. The Last of Us is well known for breaking the mould with its standout episodes, some of which — think episodes 3 and episodes 7 in Season 1 — take us on journeys into the past.