He frees the mermaid , but his leg gets caught in the net , pulling him under .
Cody asks Jess to help his mother , so he takes a knife and jumps into the water to cut the net .
Cody frees the mermaid , but Cody 's leg gets caught in the net , pulling him under .
Cody asks Jess to help his mother , so he takes a knife and jumps into the water to cut the net .