A prominent Morecambe family arouses suspicion through their aggressive business dealings, while in the MIU, a chance meeting for Jenn leads the team closer to the truth.

As the team press on with the investigation, Lisa and Med dig deeper into the family.

Despite Holly's confession that she killed her brother, the team are convinced there's more to the story than she's telling them.

Following an unexpected turn in the case, Lisa and the team accept help from a new unit.

As a confession brings the team closer to the truth, Lisa identifies a suspect.

A confession to Lisa shines a possible new light on Dylan's killer. Meanwhile, Abbie has a terrifying experience with some local addicts, and Rob's escalating actions begin to impact on his family. Elsewhere, Med starts to suspect Lisa is hiding something from him and begins to make his own investigations.

An old case puts the MIU under further pressure. Jenn must track down a key suspect before it's too late but when trouble follows her home, it leaves her whole family in danger.

DC Lisa Armstrong is asked to assist a murder investigation in Morecambe. The team try to uncover why the victim was targeted, but meanwhile, Lisa and her family are unknowingly stalked by a mysterious figure who has an agenda.

Lisa pursues a new line of investigation, uncovering a far-reaching secret.

Several major developments in the case point the team towards suspects in surprising places. Meanwhile, Erin offers an olive branch to Conor.

DS Jenn Townsend returns to the Morecambe MIU after her father's death but when a new case challenges the team she has to put her own grief aside.

The Morecambe community rallies around the grieving Metcalf family, but Jenn and the MIU team find key evidence that all was not well in their home.

With the Meredith family reeling from Dylan’s death and Sean’s arrest, Lisa is charged with finding his alibi and makes a game-changing discovery. Abbie grows closer to newcomer Vincent, whilst Rob agrees to take on a risky dare.

DS Jenn Townsend, Morecambe's new Family Liaison Officer, is immediately thrown into the deep end when a body washes up in the bay on her first day on the job.

The victim's boyfriend is found and Jenn struggles when the family she's helping starts to point the finger of suspicion at each other.

Jenn is working late when an emergency is called in - she races to the scene to find horror unfolding for a broken family... and must now uncover the truth behind it.

When the main suspect goes missing, Lisa is concerned about Sean’s possible involvement. Abbie falls deeper into Vincent’s world, bringing Sam with her. Meanwhile, Sean’s vigilante justice leads him down a dangerous path.

It's the day of Saif's funeral, and as Jenn watches closely for any suspicious behaviour, divisions within the Rahman household widen.