On the day of a coconut festival, Taylor returns from a trip only to find the entire festival's missing. The friends work together to figure out what's happened, and try to return everyone safely.
The friends receive a message and discover echo caves where they're haunted by their voices. Inside is a unique water formation that will help them communicate with another dimension.
The teens find Uncle Charlie's cassette tape about seeking a crystal in a Hidden Crypt - but the tape gets damaged before they hear the end. The group find the crypt, with its many challenging traps.
The gang search for a witch's amulet that can lift the veil between worlds. But they don't expect the witch to follow them home and trap them in Lila's house. Lila worries they'll miss the Solstice.
Overwhelmed, Lila wishes for a simple life in front of a painting - only to get stuck inside it. The others find a strange boy in her place, whom they must convince to return to the painting.
On Rock Island Challenge day, Meesha's competitive cousin visits and signs up to race against her. Even worse, Meesha and Ellis get stuck together.