The team searches for two missing teenagers; Will does not get along with District 7's new team member; Em receives a surprise visit from her estranged mother.

Will and Em race to rescue a windsurfer that wipes out and suffers cardiac arrest. Meanwhile, Captain Sonny reunites with Ocean over a family lunch and Em realizes her mom is back to her old ways. Hina tries to hide her jealousy over Kainalu's new relationship and drunkenly makes a move on Laka.