Hawaii Five-0 boss Peter Lenkov thinks it was CBS' decision to ultimately pull the plug after 10 seasons

TVLine

“I thought we had a chance of maybe going another season — every season, I thought for some reason the show would end — but I think the network just thought it was a good time” to wrap things up, Lenkov tells TVLine. “There are so many different things that factor into this — economics, everything — and I think they felt it was the right time.” Lenkov adds that he doesn't think that Alex O’Loughlin, who has often suggested that he might exit over the show's wear and tear, or that Scott Caan had anything to do with the cancelation. Lenkov adds that he always had a series finale in mind prepared for the day Hawaii Five-0 would finally say goodbye.