This week Countryfile is in the Forest of Dean. Matt Baker hunts for the elusive adder and finds out about a project in the forest that is teaching locals heritage crafts. Margherita Taylor meets the brass band making a big noise in the area, and she also explores the extraordinary Puzzlewood to discover how a landscape like this is protected. Adam Henson is on his farm, keeping everything crossed as Lexie, his Suffolk Punch mare, gets a pregnancy scan, and Charlotte investigates whether enough is being done on the ground when it comes to boosting the number of trees across the UK.