VIDEO: Sneak Peek - Christine Lahti in HAWAII FIVE-O Season Premiere, Airing Tonight, 9/24

On the third season premiere of CBS's HAWAII FIVE-0 titled '*La O Na Makuahine,' following McGarrett's mother's (guest star Christine Lahti) surprise return and Chin's gut-wrenching decision in last season's finale cliffhanger, the team is determined to track down Wo Fat and Delano for killing an important member of their family. The episode airs tonight, Sept. 24 (10:00-11:00 PM, ET/PT) on the CBS Television Network. (*La O Na Makuahine is Hawaiian for "Mother's Day) Get a sneak peek below!

HAWAII FIVE-0 is a contemporary take on the classic series about a new elite federalized task force whose mission is to wipe out the crime that washes up on the Islands' sun-drenched beaches. Detective Steve McGarrett, a decorated Naval officer-turned-cop, returns to Oahu to investigate his father's murder and stays after Hawaii's former governor persuades him to head up the new team: his rules, her backing, no red tape and full blanket authority to hunt down the biggest "game" in town.

However, now there's a new governor in office with a stricter rulebook that McGarrett and his team will need to contend with. Joining McGarrett is Detective Danny "Danno" Williams, a relocated ex-New Jersey cop – a working man in paradise who prefers skyscrapers to the coastline – who's committed to keeping the Islands safe for his young daughter; Chin Ho Kelly, an ex-Honolulu police detective and former protégé of McGarrett's father, who was wrongly accused of corruption; Dr. Max Bergman, the quirky coroner; and Chin's cousin, Kono Kalakaua, a beautiful and fearless native, eager to establish herself among the department's elite. Assisting the team is Lt. Catherine Rollins, a dedicated military officer with romantic ties to McGarrett. McGarrett vows to bring closure to his father's case, while the state's brash FIVE-0 unit, who may spar and jest among themselves, is determined to eliminate the seedy elements from the 50th state.