Dr. Hamilton irradiates an extinct flower with meteor radiation, releasing an infection that causes uninhibited behavior, coma, and death... and Jonathan and Lana are among its victims.

A fall from a tall building embeds a kryptonite fragment into a man's arm, and he develops the ability to burn his victims to death with his bare hands. Meanwhile, Clark dreads going on a yearly fishing trip with Jonathan and he tells him so in a fit of anger.