Ricky and Lizzie struggle to find privacy. Doc worries about Hope, who may be stuck in a hurricane. Mel offers Jack an enticing invitation.

Ryn discovers a refuge of injured mermaids that escaped Tia’s violent takeover. Ben and Xander get caught in a battle with Tia’s troops. Maddie feeds Robb half-truths to secure his…

Ryn, Ben and Maddie must protect Bristol Cove from Tia’s army. Meanwhile, Ben’s injections are producing unexpected results, which alarms both him and the others. Xander juggles best man duties…

When the Legends track Commander Steel to NASA Headquarters in 1970, they learn where Nate’s grandfather hid the last fragment of the Spear of Destiny. The team notices a time…

Clarke and her friends attempt to rebuild Sanctum as a new threat rises in the woods.