Angela's scheme to regain control of Falcon Crest falls through when she assumes Chase and Richard will be bankrupt after a competitor wins the Helios bid. However, she is unaware that Cassandra Wilder holds the liens on their shares. Cassandra's mother, Anna Rossini, has come for long-awaited vengeance against Angela, now that her daughter owns two-thirds of Falcon Crest. At the winery, Connie offers to make Chase a partner in Giannini Winery. Maggie walks in and catches them in a celebratory embrace. Enraged, she announces she will be moving out that evening. Angela testifies on Melissa's behalf, which gives her a lenient sentence of 60 days in jail, in return for the Agretti harvest. As Lorraine's condition deteriorates rapidly due to brain damage, Lance must sign the release to remove her from life-support systems. As Maggie and Richard comfort each other that evening, an explosion rips through his house, trapping them.

Richard and Maggie survive the explosion, but Maggie suffers from amnesia. Chase takes Maggie home from the hospital to try to rebuild their marriage. Angela Channing is forced into revealing a long-kept secret in her fight to save her wine empire from the encroachments of a vengeful mother and daughter who intend to take over the historic estate. Julia had Dominic Rossini's child, but was told it was stillborn. In order to save Falcon Crest, Angela reveals that the child was raised in an orphanage and is Father Christopher. Meanwhile, Richard Channing sets himself up as a target to flush out the killer who was responsible for his and Maggie's injuries from the explosion. He also hires an attorney, Jordan Jennifer Roberts, to help him rescue his empire.

Angela reluctantly welcomes Father Christopher to the Tuscany Valley, knowing that he presents an added obstacle in her efforts to keep her wine empire intact. In his attempts to help Angela, Greg Reardon investigates Anna's past history, including her record of hospitalization. Richard Channing is the subject of further threats. Melissa is released from jail and returns home to find a disturbing situation between her husband and Robin. Lance finds solace in Terry's wiles. When Chase gets an unexpected windfall from Connie, Maggie questions her relationships at the time of the explosion.

In a frantic effort to save her empire, Angela Channing calls on the expertise, wealth and influence of an old friend, Peter Stavros. After Maggie questions Richard Channing about their relationship before the explosion, she moves to an isolated cabin to reassemble her life. Father Christopher takes interest in the vineyards' field workers, which antagonizes Melissa and distresses Angela. Melissa later has to turn to him when her home life proves unbearable. In a meeting with Cassandra and Anna, Peter Stavros makes them his first offer for the purchase of Falcon Crest. Angela is forced into telling Father Christopher the truth about his background.

When Chase tries to help Maggie regain her memory, she rebuffs his advances, reminding him that she doesn't remember him or their marriage. Peter Stavros asks Angela to marry him, but she can only think about saving Falcon Crest at the moment. As Father Christopher gets to know his family, Angela and Greg use him as proof that Anna had a motive to kill Dominic. Unnerved, Anna sneaks into Angela's bedroom and sets it ablaze. When Richard is shot at, he escapes injury because he wears a bulletproof vest. Jordan and Richard create a plan with Richard as the target that will draw out the assailant. Lance continues his reckless and despondent behavior.

When the manor house is torched, Lance saves Angela and Emma. Cassandra realizes her mother is the culprit in both fires. Because Maggie still suffers from amnesia, Chase suggests they renew their marriage vows with a second wedding. On the big day, Angela pours her own brand of vitriol on the ceremony by mentioning Chase's relationship with Connie Giannini. As Richard's would-be assassin tries again, he is caught. Father Christopher discovers some hard facts of life from Lance and Melissa. When Lance rescues a cocktail hostess, he learns that she is an aspiring singer and offers to help her career. Not realizing that Peter and Angela are intimately involved, Cassandra sells Falcon Crest to Peter.