Wilfred wakes early on his birthday. He receives lots of lovely presents but the best one is a surprise. Mr Apple has organised a secret celebration picnic and all the mice of Brambly Hedge are invited. There’s so much to carry. Poor Wilfred gets very tired as he lurches and bumps his way along the grassy track. What is it Mrs Apple had said was in his hamper? Knives? Sandwiches? When they finally arrive, Wilfred is allowed to open up the hamper and there he finds the best treat of all…