The Forest Guardians are not who you think they are. They are the protectors of the Worlds inside the books(pun!) and of Imagination. Imagination appears everywhere and is almost like an omnipotent being.
However, one opposing force threatens the annilation of the whole Guardians: Dark Shadow who wants to engulf Imagination for power.
With only Mike and Omen, the last few Guardians to survive, will they be able to rally up enough allies before the war that Dark Shadow will bring upon the Worlds?