Dolphin Quest

S9 E4: Cody accompanies Alex on a vacation to Hawaii where she wants to spend time with her autistic 10-year-old nephew, Todd, and to show him to swim with dolphins in the local lagoon, which the mute Todd is afraid to do so. Meanwhile, Cody spends the time being with Lani's sister, Callie, a local Hawaiian lifeguard, which is peaked when they make a rescue of a boy that falls off a seaside cliff and is sucked into an underwater cave.