The phrase "to plan this series" means to prepare and organize a set of events or activities that will happen one after another in a specific order. Full definition
The network also plans a series of webinars featuring online resources in which teachers can participate. (educationworld.com)
And in fact, that is what we have almost done with our complete college planning series available on our website. (hyllandcapital.com)
I love the idea to have a new meal planning series here on your website, because I make my shopping list using your recipes anyways. (golubkakitchen.com)