Back For Blood teaser

With everything over the last two years finally over? Pip and Ravi can finally live a perfect and normal life. 18 Years later Pip, Ravi and all her friends are living a good life.
All seems to be well until all of a sudden Asha and Barney don't return home one night and memory's of Jason start flooding back after she finds a piece of duck tape at the last seen place with a note scribbled in chalk. "Dead Children walking"