Marshall takes on his old friend/new nemesis Brad in the biggest case of his career. Meanwhile, the gang reminisces about their own run-ins with the law, leading to a debate over who was the biggest delinquent as a teenager.
Because her injury prevents her from playing basketball, Maddie tries to find another hobby to find out who she really is.
Liv helps Willow ask Artie to the Sadie Hawkins dance in order to make Joey jealous.
More positive changes are made by the hospital's new management; Meredith worries about her unborn baby; Alex decides to give Jo's boyfriend a run for his money.
Callen and the team try to track down Sam when he disappears during a mission in Sudan.
