Both books are about a boy called Tim and his best friend Biscuits. They are also about two holidays - an adventure holiday and one on the beaches of Wales.
In the first book Tim doesn't like adventures and he absolutely hates the adventure holiday especially when he is stranded mid-air and is terrified. He also nearly drowns! He is in a team called the tigers and his brain helps for once. They are in a Bucket Race where they have to fill up the buckets go, get across to the Baby Cub Bin and fill it up.
In the second book, he and biscuits go to the beach and meet up with an old pal and girlfriend - Kelly! They have a very adventurous time in Wales and in the end they really enjoy their time. Biscuit and Kelly don't get along very well which is a lot of trouble for Tim!