Watch The Siren 2×10 Promo “All In”

The promo for the new episode of Siren has been released. This new episode is titled “All In” and it will air on June 20.

In this new episode, “With Elaine Pownall’s health worsening, she seeks treatment from the military’s medical trial using mermaid cells, but the procedure doesn’t come without side effects to the mermaids. Meanwhile, Helen and Rick learn more about the hybrid status, their history in Bristol Cove, and discover they are far less alone than Helen once believed.”

Source: Freeform