A Chicago-based lighting company sparks innovation with unique designs and customizable options, but the owner's lack of leadership causes sales to fizzle; if Marcus can't convince her to value her team, it may be lights out for this startup.

A husband-and-wife team is working night and day to keep their maternity and children's retail stores open, but debt is crushing them after a recent illness. If Marcus Lemonis can't teach them how to revitalize their stores, their business could go belly up.