Step by Step - S03E10: Sister Act

Karen is interested in Michael, but is too scared to talk to him so she gets Dana to talk to him. Dana talks to him and gets to know him as he gets to know her. He asks her out and she cannot help but say yes. As they get closer, Dana must keep Karen in the dark. The Lambert kids find out by monitoring a telephone call. They convince Karen to start a fight. Karen tells Michael several lies (including the one about Dana only being 14 years old) things about Dana so Michael will dump her. Unfortunately for the Lamberts, Dana and Karen discuss the problem and turn on them instead of each other. In an unprecedented dialogue, Karen tells Dana how she envies her ""book"" smarts, while Dana tells Karen how she envies her ""street"" smarts. Karen and Dana team up to repay the Lamberts for listening in on telephone calls. After Frank refuses to dance with her, Carol ignores him. It is discovered that Frank does not know how to dance. Cody with excellent dancing skills teaches Frank to dance. Frank

Director: Patrick Duffy, Bob Colleary

Cast: Patrick Duffy, Suzanne Somers, Brandon Call, Staci Keanan, Christine Lakin, Angela Watson, Christopher Castile, Josh Byrne