After shocking news concerning a chief suspect, Jamie and new friend Vivian work together to discover the identity of an officer onboard who was connected to his sister.

Jamie becomes a fugitive onboard, forcing his friends to hatch a daring plan, one that leads to Jamie discovering the truth about what is really happening onboard.

Jamie finds himself in a lethal dead end with seemingly no way out. But after a surprise intervention brings some momentary respite, he learns that others are in peril.

Welcome aboard The Sacramentum. New recruit Jamie Walsh gets a crash course on ship life while trying to keep a low profile as he investigates what happened to his missing sister.

After an unlikely ally reveals new information on Pippa's last days on board, Jamie and Vivian make a shocking discovery that leads to a dangerous confrontation.

Jamie becomes embroiled with an illicit operation on board in exchange for new information on his sister. Meanwhile, Vivian is charmed by a guest as another crew member vanishes.