What is the plot of fear street the best friend 2?

"Fear Street Part Two: 1978" follows a group of teenagers at a summer camp who find themselves in a battle for survival against a killer. As the camp's dark history unfolds, they discover the connection between the curse on their town and the infamous witch, Sarah Fier. The film delves into themes of friendship, betrayal, and the lengths one will go to protect loved ones, culminating in a fight against evil that leaves a lasting impact on the survivors. The story intertwines with events from the first film, expanding on the lore of the Fear Street saga.