A bitter Loren, who blames Sully for his daughter's death, tries to repossess Dr. Mike's cabin when he learns he still owns the deed.

When ""Andrew Strauss""—really David Lewis—the fiancé whom Mike had presumed was killed in the Civil War, visits Colorado Springs. Mike is forced to choose between him and Sully. Also, Horace and Myra experience pre-nuptial tension when townsfolk start taking over the planning of their wedding for them. Andrew Strauss/David Lewis: Maxwell Caulfield.

Mike is torn between two lovers when, in a blast from the past, her presumed-dead Civil War fiance, David Lewis, whirls into town to reclaim Mike from the arms of Sully, her current fiance. Also, Horace keeps ""losin' the mood"" when it comes time to consummate his marriage with Myra.

Mike's mother arrives with elaborate wedding plans; Custer puts a bounty on best man Cloud Dancing.

While Sully is off thinking and doesn't return for several days, Mike gets worried. Although Mike continues to believe in their love. When Sully finally returns, Mike realizes she just wants Sully as her husband. Mike and Sully marry on May 20, 1870. Brian, feeling left out, has a surprise for the newlyweds.

Dr. Mike's joyful reunion with a college friend soon turns competitive; Dorothy struggles with a new press.

A renegade stabs Cloud Dancing, and Emma has a tumor, so Mike cannot slow down before the baby is born.

A popular new arrival carries a dread disease; Preston plans an exclusive clinic.

Brian takes a liking to visiting writer Walt Whitman, even when the townspeople shun Whitman over rumors of his alternative lifestyle.

Cloud Dancing is badly beaten by soldiers for returning late to the reservation. Michaela treats him. When Sully learns of the attack, he is outraged. Tired of being treated cruelly, the tribes plan a rebellion. They enlist Sully's help.

A male acquaintance of Colleen's from Denver, starts to call on her. When the man pushes himself on Colleen, Andrew protects her honor and admits his love for her.

Chinese immigrants set up camp. Dr. Quinn discovers a young woman (Yumi Iwami) posing as a man in order to practice medicine, which is forbidden in her culture. Her Grandfather (Robert Ito) is stunned, but supportive.

While away with Sully, Michaela falls and hits her head. She suffers a concussion. The pain of losing her baby is finally discussed and resolved with Sully's.