Singapore has a double-crisis on her hands: firstly, a Livestream Killer goes online and asks people to cast their vote online in order to determine whether a victim he has captured and tortured should live or die; then, convicted serial killer Derek Ho - sentenced to hang within the week - breaks out of captivity and is now loose on the island nation.

While the police officers race against time to hunt down both the Livestream Killer and serial killer Derek Ho, a new case emerges: a father and his son, both seemingly murdered in cold blood in their own home. What was the motive? The lawyers, meanwhile, must contend with the defence of a man accused of killing a pregnant Filipino maid.

While the police officers race against time to hunt down both the Livestream Killer and serial killer Derek Ho, a new case emerges: a father and his son, both seemingly murdered in cold blood in their own home. What was the motive? The lawyers, meanwhile, must contend with the defence of a man accused of killing a pregnant Filipino maid.

Derek is "rescued" by a young girl, Lila, who has an intense fascination with him. However, there is more to Lila than meets the eye, as Derek will discover. As Angela tries to mount a defence for the Livestream Killer, Dennis discovers that his new position at Devaraj & Associates requires him to engage in dangerous politics.

When a young girl is found raped and murdered, neither the police nor the lawyers realise that it is going to lead to a young man sitting on death row. Meanwhile, Miki is devastated when her friend goes missing and turns up dead. She suspects a cult is behind the deed, and vows to get to the bottom of the truth.

Derek is on the run again, as Dennis and Angela fight to save a young man from the gallows when evidence surfaces of his possible innocence. Miki goes undercover, joining a cult she suspects of being responsible for her friend's death. However, this leads her into a dangerous and life-threatening situation.

An 11-year old girl is discovered by her parents, lying dead on her bed. As Supt Soh and Insp Razali pursue the case, they must confront the painful notion that the young girl might have been abused by her parents, or severely bullied in school. Derek, meanwhile, finds a way out of Singapore ... or does he?

Winnie is held captive in her own home by Derek, who threatens the life of Winnie's invalid mother to make her do his bidding as he reveals his escape plan to her. Elaine faces a looming threat of her own when she tries to bring a cult leader to justice for causing the death of Miki's friend. And Angela must confront a tragedy of her recent past when she takes on a case involving the death of a young child.

A teenager is stabbed to death multiple times in what looks like a ritual killing. And the discovery of a toddler's skeleton - hidden in the wall of a HDB flat - opens up a case that goes back twenty years. Meanwhile, Dennis discovers a conspiracy within his law firm that has dire consequences for the people he loves.

Derek uses Winnie as an accomplice to resolve a long-simmering issue from his past - his twisted relationship with his older sister, Helen. Razali and Isaac are temporarily distracted by a case that is turning more eerie by the hour - a group of teenagers summoning a dark otherworldly figure to do their bidding and take revenge, leading to the death of one of their own.

Winnie is in the crosshairs of the police when they discover her role in abetting Derek. The officers also crack a ring of sham marragies when they investigate the death of a travel agent, and discover she has been moonlighting as an illegal matchmaker. Meanwhile, the lawyers are shocked by a twist in the cold case of a toddler's murder.

Winnie's home becomes a battlefield when Razali and Derek go mano a mano (head to head) in a fight to the finish. And the lawyers - Dennis, Angela and Elaine - have their own fierce battles in court, when their clients make shocking revelations on the stand.

An elderly man stabs his own son-in-law to death in a killing tha draws the ire of the public. Conversely, when the body of a young wheelchair-bound teenager with leukemia is discovered, there is an outpouring of grief and sympathy for the girl's mother. However, in both cases, there is more than meets the eye, as the police - and then lawyers - will discover.

The police and the lawyers must contend with shocking revelations thrown their way in resolving two high-profile cases. And Winnie hurtles towards a critical decision that will alter the lives of everyone around her. Meanwhile, everyone grapples with the question ... is Derek Ho truly dead?

In the explosive season finale, all roads lead to a final reckoning for the police officers and the lawyers. Are Razali and Isaac walking into a deadly trap? Will Dennis be able to bring down the conspiracy that has eaten his law firm alive, or will they bring him down instead? Has Winnie lost it ... and why is Derek now her accomplice? And who is that blast-from-the-past who shows up at the end?