Episode 311, "Severed Ties"
SEASON 4, EPISODE 404 - A car-jacking and high speed chase leads SRU to a bizarre abduction, a broken family, and a deadly standoff. When kidnappers abduct a daughter, leads suggest involvement from an estranged grandmother, visiting from Florida. Then the mother is abducted. Under scrutiny, the generational relationship breach was caused by an employee of the grandmother, who nefariously intercepted correspondence, then committed the kidnappings to extort the grandmotherís wealth.