Lieutenant Commander Lilah Halstead, a Navy Seal who was trained by Steve McGarrett. Joining the Navy at 18 and working her way through the ranks, she is honourably discharged and heads home to Chicago and is the new detective in intelligence. Before joining the Navy she went to the police academy and met her best friend Adam Ruzek and they fell in love and have been together ever since and Lilah has kept her relationship from her two older brothers. How will Jay and Will react to find that their little sister is home and that she is home for good Adam Ruzek x Fem OC Slight cross over with Hawaii Five O

"And the freedom of falling, And the feeling I thought was set in stone. It slips through my fingers, And I'm trying hard to let go. But it comes and goes in waves. And carries us away." [season 1]