Some dreams are too big to be kept in bottles... Ten year-old Walter is highly imaginative and a little sassy, yet he is still not quite sure of himself. In fact, he feels lost even when he's packed off to his unknown Great Aunt Hortensia while his parents pursue their dreams of climbing Mount Kilimanjaro. Walter fears he's in for the worst summer ever - that is, until he befriends a mysterious neighbor. Old Zeb is a lonely, grizzled sailor who builds ships in bottles. When he lets Walter in on his lifelong dream, Walter begins to realize his own dreams and to discover the magic that can be unleased when one reaches for the stars.