Hawaii Five-0's McGarrett and Danno are headed to therapy, and the unlikely pair will have plenty of issues to work out.

Wo Fat Heavily Armed In New 'Hawaii Five-0' PHOTO, 100th Episode Wraps

The partners' dueling personalities and comedic bickering are in full form in a premiere clip (see video below). Stuck in a mandated session with a shrink, the duo will air their many, many grievances.

Chief among those is McGarrett's (Alex O'Loughlin) control freak attitude and Danny's (Scott Caan) annoyance that he never gets to drive his own car.

Danno Gets New Love Interest On 'Hawaii Five-0'? Detective Sparks With Co-Worker

"[McDanno] are in therapy together... airing out their differences," teased showrunner Peter M. Lenkov, according to TV Line. "It's really fun. In fact, the [actors] kept asking, 'Can we do another therapy scene down the road?'"

There is one thing McDanno can agree on, however, and that's how important the members of Five-0 are to each other.

Meanwhile, the rest of the premiere will be focused on a rouge drone and a terrorist that is targeting civilians. Luckily for the residents of O'ahu, McGarrett and his team will take on the case, and law enforcement will soon be the only ones roaming the normally busy island.

Find out more when Hawaii Five-0 returns to CBS on Sept. 26 at 9 p.m. ET.

Tags: Hawaii Five-O television CBS