Kindly, old Mr. Snip is the hedge trimmer at a stately historic home. As the two pesky Wrottan children, Hamish and Penelope, discover, Mr. Snip’s leafy creations can come to life - with unexpected results. The children have adventures with clowns that swallow too much, a haunted house, a sea monster, an island of frisky animals, speeding trains and cars, a maze and man eating plants and reptiles that grow too large. Hamish and Penelope have lots of fun, but also get into lots of trouble. Luckily, Mr. Snip is always on hand to come to their rescue.