The Hawaii Five-0 cast wrapped their 100th episode on Tuesday, bringing a conclusion to the Wo Fat mysteries.

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Titled "If, Perhaps," the milestone episode is set to air as the seventh episode of season 5. Directed by Larry Teng ("Ho'onani Makuakane," "He welo 'oihana"), shooting for the episode concluded just days after the upcoming premiere was aired at the annual Sunset on the Beach event.

"Last setup of the last scene of the last day of episode 100," Teng captioned a photo with Kono (Grace Park) and Adam Noshimuri (Ian Anthony Dale) on Tuesday. "Thank you to the cast and crew for all your hard work, thank you to the fans who watch this show every week, and thank you to Hawaii for being so supportive of your show. #H50 #H50100."

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Showrunner Peter Lenkov previously announced that the 100th episode would put an end to McGarrett's Wo Fat (Mark Dacascos) question, and Dacascos showed off a highly armed Wo Fat in a photo on Sunday (see above). Let's hope he isn't using any o that firepower on the Five-0 team.

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 glimpse at season 5.