This Friday, Hawaii Five-0's Danny and Steve will trade the front seat of the Camaro for Hawaii Airlines' coach, but the pair won't be able to leave their carguments behind.

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The series' midseason premiere will see McGarrett (Alex O'Loughlin) and Danno (Scott Caan) conquer their 24 hours of yearly therapy at a couples retreat, but based on the "Kuleana (One's Personal Sense of Responsibility)" sneak peek, the pair may murder each other long before they land in Maui.

The real victim, however, is the poor, unfortunate soul who snagged the middle seat. Not only is she stuck between to strangers, she stuck between two men whose witty repartee will surly drive her insane.

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"Are you sure you two don't want to sit together," Alissa (Sara Kova) asks after a brief squabble over headphones and Pitch Perfect 2.

"Absolutely not," McDanno answers in unison.

Well, at least they can agree on one thing.

While McGarret and Detective Williams will undoubtedly stumble across a case as they suffer through trust falls and meditation, the real danger will be back on Oahu. Kamekona (Taylor Wily) has built a (legal) mini empire since his incarceration 12 years ago, but his illicit past will come back to haunt him this Friday (see second video below).

Hawaii Five-0 airs Fridays at 9 p.m. ET on CBS.

Tags: Hawaii Five-O television CBS