-Busted! The girls stumble upon a romantic rendezvous between Garrett and a scantily clad Jenna. Spencer's awkwardness around Garrett tips him off that she knows Ian may not be Ali's killer, so he and Jenna discuss what to do with their new problem.
-Emily's constant worrying about Danby and constant physical exertion results in a painful ulcer that puts her in the hospital. While recovering, she finds out that A has been putting HGH in her pain cream, which shows up in her blood tests.
-Meanwhile, Spencer and Aria take Alison's autopsy report, finding out that their friend was killed by a curved, blunt object and was buried alive.
Source: TV Fanatic