Cooper and company find the mysterious petroglyph. Windom Earle befriends a rock and roll youth, and tells him tales of places called the White and Black Lodge. Pete helps Catherine open the first puzzle box. Lana wants Milford to rig Miss Twin Peaks. Annie and Cooper go for a nature walk. Cooper finds the poem Earle sent to the girls. He tells Harry it's a poem he once gave to Caroline. Major Briggs agrees to look into Earle's Project Bluebook work. Cooper deduces Leo Johnson is working with Earle. Shelly, Lucy, Donna, Nadine, Lana and Audrey enter Miss Twin Peaks. Mike tells Bobby about Nadine's special bedroom talents. Cole says goodbye to Shelly. Donna wants to know what is going on between her mom and Ben Horne. Treymayne hosts a wine tasting party. Windom Earle leaves his next victim and a terrifying promise for Cooper: "Next time, it will be someone you know."