Star Trek: Deep Space Nine S03E14 - Heart of Stone

Star Trek: Deep Space Nine (1993)
S03E14 Heart of Stone
Episode Overview
Stardate: 48521.5. While pursuing a fugitive, Kira finds herself trapped in a cave, gradually being enveloped by a burgeoning crystal formation. Meanwhile, Odo frantically searches for a way to rescue her from this perilous situation.