S4, EP4 "Those We Leave Behind"
Higgins' therapist hires her to look into why one of her teenage patients died of suicide.
S4, EP3 "Texas Wedge"
Magnum, Higgins and Rick go under cover at a ritzy country club when a young caddie is fired after being accused of stealing a member's golf clubs; Jin's niece, unaware of her uncle's shady past, asks him to speak at her school.
S4, EP2 "The Harder They Fall"
While Magnum and Higgins reunite and work the case of a construction worker's tragic death, TC and Shammy get skyjacked by a pair of drug runners posing as tourists.
S4, EP1 "Island Vibes"
Magnum is tasked with finding a single mom being hunted by two very dangerous gangs; while Higgins is abroad with Ethan, a misstep forces her to assist an old employer.