CSI Ruff: The Sequel

CSI Ruff: The Sequel (aka. CSI Ruff 2) is Season 6 Episode 19.

Plot
Someone took away Ruff's favorite object of all. In order to retrieve it for today's challenge, he sends all of the six contestants to the headquarters in order to help D.B. Russell and his two companions Abby Sciuto and Nell Jones investigate the crime.