NCIS: Los Angeles S03 E21 Touch of Death (II)

"New city. New team. Same attitude."

The joint NCIS: Los Angeles and Hawaii Five-0 task force travel from Hawaii to Los Angeles, when the lead suspect in the case moves to the mainland with a deadly virus in tow. The crossover starts on Hawaii Five-0 S02E21 Pa Make Loa (Touch of Death) (I).