Pj & Amy begin the task of gathering evidence for what appears to be a simple case of SIDS, but Amy has other ideas. Amy is sure this was no accident, taking into account the fact that the parents had lost their first child in a separate incident. Pj warns Amy to go easy and isn't so sure she is on the right track. We meet Senior Constable Alex Kirby, who doesn't make the best first impression on the Boss, Pj & Amy with his smart mouth. Susie & Jonesy are held hostage by the local idiot and his mum...ending up handcuffed together, the two are joined by Alex who finds a way out. All the while Amy is searching every avenue to find some evidence to prove the child's death was no accident. Amy's hard work is rewarded when she finds all the evidence she needs to prove what she knew was the case all along. The conclusion to this case is sad and disturbing.