After Governor Hobson’s stroke, Willoughby Shortland stepped in and sent the Treaty south in the hope of more signatories. This fourth episode of comedian Mike King’s Treaty discovery series searches for where the sheet was signed on the Manukau Harbour. King learns of an (unfulfilled) ancient prophecy, and why Ngāti Whātua chief Apihai Te Kawau agreed to sign. King then heads across the harbour and uses his mission as an excuse to visit the Kāwhia Kai Festival, where he learns about the influence of the incoming “great white wave” on signatories.