Xander (Ian Verdun) gets taken aback by a surprise attack by Katrina and Cami in this sneak peek from Siren.

In tonight’s episode called “Distressed Call”, Dale copes with the fallout from Maddie (Fola Evans-Akingbola) and Ryn’s (Eline Powell) encounter with the man from Susan’s past, while Katrina continues to persuade the rest of the mermaid pack to get on her side – even if that means brute force against both mermaids and humans.

Siren airs TONIGHT, Thursday, February 28th @ 8PM ET/PT on Freeform.

Check out the sneak peeks below!