The casino plays host to an environmentally friendly conference; Danny questions Delinda's plan for a new "green" lifestyle; Sam tries to capitalize on high rollers looking for love; Cooper shows a new side of himself when a mystery woman arrives.

The effects of the Montecito robbery reverberate all over Las Vegas; Danny tries to fend off federal agencies' accusations; Delinda wants Cooper and Sam to apologize to each other; Piper and Mike help a widow carry out her husband's last wishes.