Hawaii Five-0 Kono will have some major relationship decisions to make during season 5, and the series will take a look back at her past as she does so.

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Kono (Grace Park) and Adam (Ian Anthony Dale) are moving on with their relationship, but the former surfer may not be ready for the next step. While the pair figures out if Kono's dangerous lifestyle is compatible with marriage and kids (look what happened to Cho's wife or Danno and Grover's daughters), Hawaii Five-0 will take Kono back to her surfing heydays.

"We're doing a big Kono-centric episode that's going to feature her connection with her mother, her love and affection for the ocean and where she learned to surf," said executive producer Peter Lenkov, according to Entertainment Weekly.

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The CBS drama will also have another flashback up its sleeve as the season progresses, but it remains a mystery as to whose past they will delve into. Will it be McGarrett (Alex O'Loughlin), with his PTSD or some information about Wo Fat? Or could it be Danno (Scott Caan) as his brother's season 1 crimes come back into the storyline?

Find out more when Hawaii Five-0 returns to CBS on Sept. 26 at 9 p.m. ET. Click the video below to get a preview of season 5.