Paul Martin investigates an invasive and dangerous aquatic plant that is clogging up our river and waterways and putting wildlife and pets at risk. Keeley Donovan visits the largest roost of endangered bats in the country. These bats also happen to live in one of the most haunted houses in the country, Woodchester Mansion in Gloucester. Steve Brown meets Adele Pember founder of a website called Dog Furiendly. Her dog Charley struggled with separation anxiety, a condition that affects 30% of dogs in the UK. And Jules Hudson investigates why a fifth of children between the ages of eight and ten have never played outside without adult supervision. We often blame devices and games consoles for children being sedentary, but could it be that parents are a bit too cautious when it comes to giving them a bit freedom?