Leo begins his community service after being convicted of drink driving as he tries to get a message out to the kids.
DS Nick Wallace is investigating the latest death but is getting annoyed at the lack of forensic evidence.
The team investigate when a woman's body is recovered but the case is made hard as her face has been removed surgically.
The murder of Holly Farr is starting to affect everyone as they continue their investigation finding she died when her throat was slit.
A police raid has resulted in several fatalities and injuries as the team are called in to investigate what happened.
The woman shot dead in the raid is identified as a police officer as DI Tranfield is convinced the terror strike will occur.
Investigating the death of a Jewish man, Harry follows the families request by not being invasive and finds that he was beaten to death.
When another Jewish man is found dead, Harry wastes no time in completing a full examination as DI MacKenzie may have contaminated evidence.
A schoolboy is found dead in the school grounds but as Nikki investigates, her old teacher was the boy's teacher.
When a known paedophile is found dead on a railway line, the team start to consider if he was involved in the boy's death.
A friend of Leo's worries about his daughter who is in Zambia so the team head out when she is found dead.
With the discovery of another dead aid worker, the team start to work out what Rachel was up to when she died.