Undercover Martyn (Two Door Cinema Club fanfic)

Sussan Martyn is a 18 year old girl who (literaly) bumps into a boy at a moment where she is in need, the boy decides to help her and from then she is introduced to what will soon become three of her best freinds, there names? Alex, Sam and Kevin, but is there somthing odd about her past? Somthing she's not telling them? Could she have been undercover?!