Season Number: 2	Production (Airing) Number: 432 (32)
Guest Stars:	James Sloyan - Dr. Mora Pol Matt McKenzie - Dr. Weld Ram
Director:	David Carson
Writing:	Teleplay: Bill Dial Story: Jim Trombetta & Bill Dial
Summary:	The scientist who found Odo finds similar DNA traces on another planet and he and Odo bring back a life form with similar shape-changing abilities. But the life form dies on the station and shortly thereafter, strange things begin to happen which indicate that an hostile alien life form is loose on DS9.