Tilly and George float away in a bubble after dinner one day whilst doing the washing up and find themselves in a strange Kingdom inhabited by insects and ants. They have many adventures trying to save the field ants and their insect friends from the invasion of a huge colony of soldier ants and their powerful Queen. With help from such characters such as Riff, Captain of the Field Guard, Bootle, a water beetle, Gebbo, a brave spider and many others they manage to execute a daring plan of escape and help restore the Kingdom to its former state of harmony and freedom.