Shifter

the long version

"Noah Freeman is just your average guy, making his living as a low-ranking civil servant on the government's payroll. That is, until he becomes ensnared in a far-reaching conspiracy that leads to his being framed for murder. Noah's luck looks to be taking a turn for the worse until he discovers an extraordinary device that allows him to become a variety of creatures from Earth's past and present. Suddenly Noah is the only person who can save thousands of lives from a murderous plot."--Page 4 of cover.