Emily talks about safe sex to some girls at a local high school; and she tries to forget about her feelings for Will.

When Emily, Will and Cassandra compete against each other to be Dr. Bandari's research assistant, feelings get hurt when they have to describe each other's flaws. Emily is determined to solve the medical mystery of a young patient whose x-rays reveals a bullet lodged in his lung, but who has no signs of a gunshot wound or scar. Meanwhile, Emily comes to a revelation about her personal life after diagnosing a daredevil with a rare disease that forces him to change his entire life.