The term 'One Thing After Another' can be summarized by two crossword solutions: SERIES (6 letters) and CHASE (5 letters). A SERIES is a set of related objects, events, or ideas that are arranged in a particular order. It is often used to refer to a sequence of events that occur over time. A CHASE is an act of pursuing someone or something, usually with the intention of catching them. In this context, it could refer to the pursuit of one thing after another.