The CDF II End Plug Calorimeter is a sampling calorimeter based on plastic scintillating tiles using a projective tower geometry. The tiles are read out by wavelength-shifting fibers embedded in the tiles. A description of the CDF II End Plug Calorimeter is presented along with results from test beam and cosmic-ray testing taking place at Fermi National Accelerator Laboratory during the past year. The performance of the calorimeter is within the design specifications.