Sarek finds a 21st century human on the Klingon infested planet, Donatu V, but how she arrived and managed to survive remain a mystery. A temporal detective, a cowboy and Captain Lorca attempt to uncover the truth behind this bizarre abduction and what it means for the Klingon-Federation War. This epic, space opera features a cast of original characters and several cannon cameos.

When hiding in plain sight doesn't work, the team find themselves working alongside an undercover agent with credentials that could rival Callens'. Who is Cassandra Wyatt? Who is she working for? Can they trust her? Callen aims to answer these questions, while trying to keep his team safe from what ever horrors Miss Wyatt may bring their way.