The book begins in 1980 - 24 years before the main plot.
The main plot of the first series is the five trying to stop anyone else finding out about the murder.
The main plot of the story deals with finding the best place for the sign.
They can occur at a significant period of time after the main plot has ended.
The main plot is set around members of both shells.
Those events, decades later, would become the basis of the show's main plot.
Each game has a different objective but same main plot.
The main plot is a love story between two young men.
Now consider the form and structure of the two main plots.
Even the main plot itself may be undertaken in a number of ways.