A woman's job hunt turns sour and officers intervene when she goes to extremes. Also: deputies confront a nervous man with bad habits and officers come across a suspect who thinks his girlfriend is the reason he was caught.

Eric and the team must figure out how to negotiate with bank robbers who are not demanding cash.

A young man receives a wake up call when he's caught breaking the law; a traffic stop turns up a nervous trio with a lot to hide; a board game sparks a family feud.

To help recruit her people to join the rebels, Sabine reluctantly agrees to learn to wield an ancient Mandalorian weapon but finds the challenge more difficult than expected.

Host Aziz Ansari; Big Sean performs.

Hunk and Lance crash-land underwater and follow a mermaid to a civilization whose queen promises to keep them safe and help find the others. While resting, Lance is kidnapped by a trio of mer-people who believe the queen to be mind controlling the populous. After freeing Hunk of the control and capturing the queen do they realize that the Baku, which was a food source to the people, was really an alien predator beast. Lance channels a new weapon from his Blue Lion and kills the Baku, and as a thank you the queen uses the old energy beacon which brings Pidge to their rescue.

When Otto's solo plan ends with a dead man on the floor of the bail bonds office, Otto, Marius, and Lance are left at the mercy of BBB's dangerous client Dockery, who wants his collateral money back- and no more excuses. Marius finds himself in the hands of two unlikely saviors. Meanwhile, Vince comes up with a new plan to catch a cheater at his table, and Taylor shoulders new responsibilities.

A patient brings a deadly virus into the clinic. Vilma becomes infected and Ravn must make the most difficult choice of his life. While Unn works hard to gain control of the infection, Leif implements his own plan. A pandemic is after all a threat he and his like-minded comrades have been preparing to face.

The team reunite but all is not well when a change of management shakes up Nonnatus House.

Whispers that Cowley General contains a cursed ward - and a seemingly innocuous death - set off a chain of events that lead Endeavour to investigate the dark depths of the hospital. While there, he is forced to confront his own ghosts as he discovers a chilling secret.

Dr Yvonne Carmichael seems to have it all - a respected career, a beautiful home and family. However, nothing is ever as it appears, and when she receives an unexpected proposition from an enigmatic stranger, Yvonne is shocked by the passion he awakens in her. But gradually she begins to realise that there is much more to her lover than meets the eye, and she could be playing a very dangerous game indeed.