In of Cruel Summer , titled "The Miseducation of Luke Chambers," the series explores the events leading up to Luke’s disappearance across multiple timelines, culminating in a major cliffhanger. The 1999 Timeline: Tensions Rise
: Luke feels increasingly alienated from Megan and Isabella as they begin spending more time together without him. [S2E9] Summer Finale
: It is revealed that Luke, not Brent, was the one who played the sex tape of himself and Megan at the party to retaliate against his father. In of Cruel Summer , titled "The Miseducation