The four remaining teams leave Christchurch and fly to Auckland for the leg that will determine the final 3.
The teams begin at Inverary sheep station, the previous pit stop and fly to Auckland. Once there, teams witnessed a Maori dance before continuing on with the race. The Fast Forward for this leg required teams to drive to the top of Mount Terawera where they would complete a treacherous volcano "scree" run, a near vertical sprint down a wall of loose volcanic rock to the bottom of a dormant volcano, where the Fast Forward clue would be waiting for them. One team claimed the Fast Forward, checked into the next Pit Stop and automatically became one of the final three teams.
Teams were then faced with a Detour, "Drop" or "Climb". All teams chose "Drop" which involved the largest free rappel in the world into an incredibly deep cavern known as "The lost world caves". Teams would find their next clue at the end of the long trail.
The race to the Pit Stop was tight with two teams in a close foot race, but one team could not make it in fast enough which resulted in their elimination.

After ten months without a break, T'Pol notes efficiency onboard Enterprise is down three percent, and suggests a shore leave on the nearby tropical planet of Risa. Archer and Trip agree wholeheartedly and lay in a course to the exotic paradise. However, en route Archer receives a transmission from Admiral Forrest, informing him of a Vulcan Ambassador in need of immediate extradition from the nearby planet of Mazar. The matter is of some urgency, and with the closest Vulcan vessel over a week away Enterprise is to retrieve the Ambassador and deliver her to the Vulcan ship Sh'Raan at a rendezvous point in three days time.

After a brief detour, Enterprise and its crew are back on their way to famed pleasure planet Risa. Everyone is eagerly anticipating a long overdue shore leave ... until they pick up a distress call from an unidentified vessel, and vacation is once again delayed. After figuring out that the vessel's warp injectors are simply clogged with plasma residue, Trip gets to work repairing the engines while Archer enjoys a visit with the ship's captain, a ruggedly charismatic alien named Zobral. Hailing from a nearby desert planet, Zobral invites Archer and Trip to his home for a dinner in their honor. Though Archer is reluctant to accept the invitation since it means delaying shore leave yet again, he eventually relents, charmed by Zobral's persistence. Later, Archer is surprised to find Trip unenthusiastic about the invitation. The chief engineer confesses that he's hated desert environments ever since their harsh survival training in the Australian outback. Archer, however, manages to convince Trip to come along.

Pacey leads a revolt against Alex at Civilization. Dawson, Joey, and Audrey return to Capeside, leaving Audrey to wonder about their pasts. Joey decides to see her father for the first time since his latest incarceration, while Dawson finally pays a visit to his father's grave. Jack and Jen wonder how they'll spend the summer.

Jim agrees to take the girls for the day while Cheryl and Dana go to a doctor's appointment. At the park, Jim leaves the girls with another mom and goes to the movies... where he's busted by Cheryl. Things go from bad to worse when he tries to retrieve the kids and can't remember who he left them with.

While C.J., now code-named 'Flamingo', adjusts to being followed by Secret Service Agent Donovan, Bartlet and the staff rush to deal with a predicted terrorist attack. Meanwhile, Toby argues with TV network executives when they threaten to pull coverage of national conventions from their broadcast; Sam gets his hands on a copy of a commercial bashing the President; and Josh, back in Washington after the Helsinki summit, gives Donna a gift from his trip: cured moose meat.

The wife of an attorney with many disgruntled clients is killed, but the detectives believe that he was the intended target as he was willing to reveal information despite confidentiality agreements. As the investigation continues, his tumultuous love life is exposed and the prosecutors are suspicious of his desire to return to the courtroom.

Tonight, actress Diane Lane promotes her new movie, Unfaithful.