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Well, Melanie Griffith is coming to town, and I couldn't imagine Danno's mother not having an opinion on who her son is dating. But the couple will have bigger challenges than a nosy parent. Although executive producer Peter Lenkov previously teased that Danny's daughter Grace could come between the pair, I'm hearing that Gabby will also be forced to choose between Danny and a job.
Watch the promo for Five-0's season 4 below: