It's Alive Part 1 is the 26th episode of Martin Mystery season 2. This is a continuation of It's Alive Part 2.
Diana decides to resign from "The Center" and joins CIHL and shocks Martin, Java, Billy, M.O.M. and the members of "The Center". After being armed with CIHL gears and weapons, she goes after Martin's assigned monster. Let's just say this is a transformation.