The War Of Plants And Zombies

The War Of Plants And Zombies was the reason why events of Overlawn happened.

Overview
After infected Edgar became the leader of zombies, he led them to the Garden and attacked Dave as well as his plants. In the inevitable trend, the war broke out.

Aftermath
At last, Dave and Edgar both died, as well as plenty of plants and zombies. And the energy they generate in battle made a barrier around the Garden.