NCIS Hawaii's Lucy and Kate in explosive split row in first-look promo 'Threw it away!'

Rookie agent Lucy was left distraught by Kate’s confession, and will finally get a chance to confront the lies in the next episode.

A new clip from Sunday’s instalment has revealed their first fight after last week’s shocking turn of events.

Kate catches up to Lucy in the street, who, at first, is reluctant to talk the situation over.

“I should have told you about Cara,” she admits.