Saturday and Sunday are a pair of lizards living the good life, lazing around on a tropical atoll and fishing off the beach. But when Saturday comes down with a case of acute questionitis, the big mysteries—why are we here? how did we get here?—won't leave him alone. Only travel can cure his ills, and he sets off with Sunday in tow. What's a best friend to do but tag along? Together, the indefatigable duo have encounters both fanciful and philosophical in this charming and freewheeling paean to simple joys, curiosity, and friendship, fit for all ages.