Lily wanders into the clinic, which is teeming with all sorts of people, including Zee putting a little kid's arm in a sling. When Lily can't pronounce Zee's billion-syllable name quickly enough, Zee rolls her eyes at the "great white hope" in front of her, then tells her to put her bags down and go pitch in. This leads Lily to the partially cordoned-off area that's being used for an ER, where Drs. Ben and Otis are trying to remove a sting-ray from the kayaker's Achilles tendon. The guy is pretty dedicated to screaming and thrashing around in pain. Lily joins two other onlooker docs: Mina, played by Mamie "Daughter of Streep" Gummer; and Tommy, played by Zach "Matt Saracen" Gilford. Kayak Dude is screaming for painkillers, which gives Otis a nice opportunity to establish that this clinic doesn't have much in the way of drugs, because they "survive on donation." Lily steps forward to pitch in, and Dr. Ben instructs her and the other two to hold this fucker down while he tries to extract the ray's stinger from his heel. Ben tries to count to three, but Screamy Kayak thrashes and knocks Lily over, at which point Ben goes for plan B: punching Kayak in the nose and then yanking the stinger out while he's distracted. You know, like your mom would do when you had a tooth that needed pulling.
After the title card, Dr. Ben leads our three new docs around the facilities, giving us a bit of exposition along the way: they're the only medical facility for 200 miles; their surgical unit is located on the patio, so "sterile" isn't the first word that comes to mind; no high-tech equipment, no "Big Pharma," basically medicine like it was practiced in 1952, but with the bonus of a crazy selection of jungle herbs and potions. "We have plants that cure viruses," Ben says, "tree sap to heal wounds, insects that stop gangrene." Possibly moss that will help keep your accent from fading away? (It's the craziest thing -- Martin Henderson is FROM New Zealand, but there are full scenes where he speaking with an American accent. And then it's back to Kiwi Surprise in the next.) "Out of hundreds of doctors, I picked you three," Ben tells them. "So don't screw it up," Otis grumbles as he enters the potion room. See the dynamic! Tommy asks Otis if, since they've been traveling so far, they can catch some beach time before they start actually being doctors. "You know, get our swim on?" So Tommy's that guy. Otis looks at him with barely restrained contempt, then leaves.