Hawaii Five-0 will reunite the McGarrett clan in "Ua Ola Loko I Ke Aloha (Love Gives Life Within).

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A death will bring Aunt Deb (Carol Burnett) back to Oahu in episode 12, and it may very well prove to be the end of her character arc.

"Aunt Deb returns to Hawaii to scatter [her husband] Leonard's ashes, and we find out her aggressive cancer has returned," Hawaii News Now reported. "She enlists McGarrett, Mary, and Joanie for help with a bucket list she and her departed husband intended to do together."

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The funeral, which will include appearances from Mary (Taryn Manning) and her toddler daughter, will create "closure" for Aunt Deb's story, according to showrunner Peter Lenkov.

If this is Burnett's last appearance, fans will be sorry to see her go. Pulled from the world of the original series, Aunt Deb's guest appearances have become a highly anticipated part of each season.

"I heard she'd be open to a role I just went into the mythology of the show and found Aunt Deb. I didn't want her just to be a one-time guest star," Lenkov told TV Fanatic. "I wanted her to be part of the fabric of the show so I dug back into the original series. We do that a lot of we have a regular character or recurring character."

Will Hawaii Five-0 bring in another guest star that is equally beloved? Find out when the series returns to CBS on Jan. 8 at 9 p.m. ET.