Don and his team must solve the murder of a CFO of a large energy corporation who is found murdered on her doorstep and her young son is the only witness.

Don and Megan are called to a murder scene when the CFO of a powerful energy company, who was about to testify against fellow executives for stock fraud, is found dead at home with the only witness being her 11-year-old son. Knowing there could be thousands of disgruntled ex-employees, Don calls on Charlie to help narrow down the list of potential suspects, but is surprised when the investigation takes them in a different direction.