Ellen is wary of Dot's new ""gentleman caller"" because of her mom's history of falling for the wrong kind of man.

Although she tries to find fault with Joe, Ellen realizes that she actually likes the guy -- that is, until she believes she's stumbled upon some startling information about him that she feels obligated to share with her mom.

Meanwhile, Ellen desperately searches all over Clark for a decent cup of coffee and ends up finding one in the most unlikely place. (from CBS)