When Eric Knight’s best friend, Tom, is murdered, he can't let it go until he discovers who was behind the crime.　Together with his friends, Eric begins a quest for truth that takes him from the modern streets of New York to the living past of a Renaissance Faire. With each step he takes, the killer is close behind him, and the only way for Eric to find justice may be to fall back on the laws of long ago.

Anyone who has ever been to a good Renaissance Faire knows what an experience it is to step into a world crafted by creative minds where the fantastical and the historical come together. But behind the elaborate costumes, colorful personas and high pageantry are the people who make it all possible. Knight Errant opens the door to the lifestyle of "Rennies", from the struggling actors to the skilled craftsmen, showing what a close-knit family they are.