Sam's old friend Mack asks for help.
Michael finds himself in more trouble than ever before when his only link to the intelligence agency turns up dead and his biggest foe seems to want him dead. He also takes on a violent con man and later gets entangled with Columbian drug cartels and a black-ops sociopath.
Meanwhile, a widow whose husband died during a fake insurance scam begs Fiona to keep his dangerous associates away from her and her son.
Elsewhere Madeline is forced to befriend Tina, county archivist (played by Tyne Daly) and use her to get the records the gang needs when she proves to be immune to Sam’s charms. But will Madeline be able to find it within herself to turn on her new friend?