Aloha! The Hawaii Five-0/Magnum P.I. crossover is here at last! Steve McGarrett and Five-0 join forces with Thomas Magnum and friends to protect national security when a list of undercover CIA agents is stolen and a member of Five-0 is put in serious danger, on back-to-back episodes of Hawaii Five-0 and Magnum P.I. this Friday, January 3rd, only on CBS.

See below for a quick preview of both episodes in this special two-part crossover event.

READ MORE: 'All The More Jobs': Sen. John Hickenlooper Aims For More Federal Funding For DIA Projects

HAWAII FIVE-0: “Ihea ‘oe i ka wa a ka ua e loku ana?” – When a list of undercover CIA agents is stolen, Steve and Five-0 enlist the help of Magnum (Jay Hernandez), Higgins (Perdita Weeks), Rick (Zachary Knighton) and TC (Stephen Hill) to get it back and protect national security. Also, Higgins gives Tani some personal advice, on HAWAII FIVE-0, Friday, Jan. 3 (8:00-9:00 PM, ET/PT) on the CBS Television Network.

READ MORE: Colorado Latinos Celebrate Cinco De Mayo After Disproportionate Impact From COVID

(“Ihea ‘oe i ka wa a ka ua e loku ana?” is Hawaiian for “Where were you when the rain was pouring?”)

MAGNUM P.I.: “Desperate Measures” – When Junior (Beulah Koale) is kidnapped as leverage to retrieve the stolen list of undercover CIA agents, and most of Five-0 is rounded up by the CIA to prevent them from interfering, Tani (Meaghan Rath) and Quinn (Katrina Law) ask Magnum and Higgins for their help, on MAGNUM P.I., Friday, Jan. 3 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

MORE NEWS: Childhood Friends Buy Denver Home Together Amid Soaring Costs: 'You Have To Be Flexible'

Check your local listings for more information.