11. Dewey's Opera

When Lois buys a brand-new king-sized bed, Hal thinks that her motive is to put more distance between them and refuses to sleep in it. Moved to tears by an opera he sees on television, Dewey is inspired to write his own operatic masterpiece based on his parents' quarrels, "The Marriage Bed", which is turned into a school production. Malcolm and Reese build their own street luge board and Malcolm gets into a feud with a mystery rider who keeps forcing him off the road. When he makes a bet against the mysterious street luger, he is horrified to learn that it is Stevie and loses his bet.

However, Stevie breaks both his arms in an accident. Jamie has his first crush on a girl his age living in a house across from his family's, but the girl becomes attracted to another boy. When the family attends Dewey's opera, Jamie then forms a crush on another toddler girl.