Under Interrogation - Hawaii Five-0 Season 10 Episode 15

An angry Grover interrogates Endo while McGarrett stands ready to play good cop as they search for Siobhan.
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Into the Woods - Hawaii Five-0 Season 10 Episode 15

McGarrett backs up Grover as they follow Adam on his quest to trade Endo to Kenji for Siobhan.
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Distraction Plan - Hawaii Five-0 Season 10 Episode 15

Grover invites Adam for a coffee date then calls McGarrett to see how his investigation of Adam's apartment was going.
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Searching a Car - Hawaii Five-0 Season 10 Episode 15

Tani shows Quinn the second cell phone she discovered that had been hidden in the vent of Endo's car.
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Still a Guest - Hawaii Five-0 Season 10 Episode 15

Recovering from Joanna's sudden death, Danny agrees to stay on at Chez McGarrett while his house "is being renovated."
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Flourishing at School - Hawaii Five-0 Season 10 Episode 15

Grover's niece Siobhan has gone from being a potential scholarship college basketball player to a top student at HPB Academy.
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Caught on Tape - Hawaii Five-0 Season 10 Episode 15

Adam gets caught on surveillance spiriting Endo out of interrogation to trade him for Grover's abducted niece.
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Bungle in the Jungle - Hawaii Five-0 Season 10 Episode 15

Grover's niece Siobhan ends up getting abducted when she discovers her HPD Academy boyfriend is actually Yakuza.
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Siobhan Goes Missing -- Tall - Hawaii Five-0 Season 10 Episode 15

Siobhan and Tani grab lunch after Tani teaches a firearms class which Siobhan is taking at HPB Academy.
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Siobhan Goes Missing - Hawaii Five-0

Grover's niece, Siobhan, goes missing on Hawaii Five-0. "He waha kou o ka he'e (Yours is the mouth of an octopus)" is the 15th episode of the show's tenth season.
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Hawaii Five-0 Season 10 Episode 15 Quotes

You want to go home alive. Get faster.

Tani

I just wanted to tell you I'm so sorry, so sorry.

Danny [to Marie]