Episode Guide:
Charmed #144 (7.10) - Witchness Protection
The Avatars insist that Leo (Brian Krause) protect the Seer (guest star Charisma Carpenter, "Angel") because she has information that can help them destroy the demons. The Seer shares with Phoebe (Alyssa Milano) a vision of a future in which there are no demons, leading the sisters to consider the possibility that the Avatars might be good and allowing Leo the opportunity to admit he is an Avatar. Meanwhile, to stop the Seer from selling them out, the demons release Zankou, the most powerful demon in the underworld; Agent Brody (guest star Kerr Smith) shares his darkest secret with Paige (Rose McGowan), bringing them closer together; and Phoebe and Lt. Morris (Dorian Gregory) become more suspicious of Agent Brody.
David Jackson directed the episode written by Jeannine Renshaw.
Guest stars: Kerr Smith (Agent Kyle Brody), Charisma Carpenter (Kira, the Seer), Oded Fehr (Zankou), Joel Swetow (Avatar Alpha), John de Lancie (Odin), Patrice Fisher (Avatar Beta), Ian Anthony Dale (Avatar Gamma), Jenya Lano (Inspector Sheridan), Corey Stoll (), Matt Winston (Manny)
First aired: November 28, 2004 (USA) and November 27, 2004 (Canada)

Charmed #145 (7.11) - Ordinary Witches
Still not completely sure that the Avatars mean well, Piper (Holly Marie Combs) agrees to switch powers with Phoebe (Alyssa Milano) so that she too can see Phoebe's premonition of a utopian world. During the spell, Zankou (guest star Oded Fehr), the most powerful demon in the underworld, senses the girls' vulnerability and attacks them, accidentally transferring their powers to innocent bystanders, who run amok with their new abilities. Meanwhile, Brody's (guest star Kerr Smith) desire to kill Leo (Brian Krause) and the Avatars prompts Paige (Rose McGowan) to take Brody on a journey back to his childhood when his parents were killed so that he can learn the truth. Finally, the Elders learn Leo's true identity.
Jonathan West directed the episode written by Mark Wilding. Guest stars: Kerr Smith (Agent Kyle Brody) Oded Fehr (Zankou) Max Perlich (Laygan) Joel Swetow (Avatar Alpha) Patrice Fisher (Avatar Beta) Jon Hamm (Jack Brody) Jessica Steen (Ruth Brody) Brian Howe (Ronnie) Anne Dudek (Denise) Bruce Gray (Elder) Elizabeth Dennehy (Sandra) T Lopez () Peter Woodward (Aku)
First aired: January 16, 2005 (USA) and January 15, 2005 (Canada)

Charmed #146 (7.12) - Extreme Makeover: World Edition
While the Avatars prepare to transform the world into a Utopia, they inform the Charmed Ones that the human world must be put to sleep so that they can kill any remaining demons. Brody (guest star Kerr Smith), doubting the Avatars good intentions, calls the Elders for help but is instead kidnapped by Zankou (guest star Oded Fehr) and agrees to help Zankou stop the change by placing a paranoia spell on Piper (Holly Marie Combs), Phoebe (Alyssa Milano) and Paige (Rose McGowan). During the Utopian transformation, Brody uses Paige's paranoia to attract and kill an Avatar. However, Brody pays a high price for his actions.
LeVar Burton directed the episode written by Cameron Litvack. Guest stars: Kerr Smith (Agent Kyle Brody) Oded Fehr (Zankou) Max Perlich (Laygan) Joel Swetow (Avatar Alpha) Patrice Fisher (Avatar Beta) Ian Anthony Dale (Avatar Gamma) Rebecca Balding (Elise Rothman)
First aired: January 23, 2005 (USA) and January 22, 2005 (Canada)

Charmed # 147 (7.13) - Charmageddon
While the Charmed Ones enjoy their new conflict-free world, Leo (Brian Krause) learns that in order for the Avatars to protect their Utopian world, they also control everyone's destiny by deciding who lives and dies. Wanting to stop the Avatars, Leo joins forces with Zankou (guest star Oded Fehr) to undo the change. Unable to convince Piper (Holly Marie Combs), Phoebe (Alyssa Milano) and Paige (Rose McGowan) that the Avatars kill innocent people, Leo gives his life, causing the sisters' to join forces with Zankou to reverse time and return the world to the way it was. Finally, Paige receives a special surprise and Leo's fate relies on the Elders.
Guest stars: Kerr Smith (Kyle Brody) Oded Fehr (Zankou) Max Perlich (Laygan) Joel Swetow (Avatar Alpha) Ian Anthony Dale (Avatar Gamma) Rebecca Balding (Elise Rothman) Jeremy Kent Jackson (Minion) Tom Virtue (Angry Man). John Kretchmer directed the episode written by Henry Alonso Myers.
First aired: January 30, 2005 (USA) and January 29, 2005 (Canada)

Charmed #151 (7.17) - Scry Hard
Zankou (guest star Oded Fehr) sends his underlings to attack Leo (Brian Krause) in hopes of luring the sisters out of their house so that he can search for the Nexus and release the Shadow, the ultimate power. Terrified after witnessing demons attack his parents, Wyatt magically shrinks Piper (Holly Marie Combs) and Leo and traps them inside a dollhouse for their protection. Unable to stop Zankou from releasing the Shadow, Phoebe (Alyssa Milano), Paige (Rose McGowan) and Piper watch as Leo, the only neutral territory, absorbs the Shadow. Meanwhile, Phoebe is left in charge of the paper, Paige feels the need to spread her wings, and Leo gets an offer he can't refuse. Collective Soul performs at P3.
Derek Johansen directed the episode written by Andy Reaser and Doug E. Jones.
First aired: April 17, 2005 (USA) and April 16, 2005 (Canada)

Charmed #155 (7.21) -  Death Becomes Them
Zankou's (guest star Oded Fehr) plan to make the sisters vulnerable so that he can take control of the Book of Shadows starts to work when Phoebe (Alyssa Milano) is left guilt-ridden after a classmate is brutally killed in front of her and comes back from the dead to blame her. Also part of Zankou's plan, Paige (Rose McGowan) is devastated when she finds her new charge dead and realizes she was powerless to save her. Realizing that Zankou was behind the deaths, Piper (Holly Marie Combs), Phoebe and Paige go after the Alchemist (guest star John Kassir), who is helping Zankou, and are confronted by all the undead innocents they were unable to save over the last seven years, allowing Zankou to take the Book of Shadows without the sisters knowing. Meanwhile, Darryl (Dorian Gregory) is put in a compromising position when he has to choose between protecting the sisters or working with Inspector Sheridan (guest star Jenya Lano), who is regaining her memory and is determined to connect the Charmed Ones to the unsolved disappearances.
John Kretchmer directed the episode written by Curtis Kheel.
First aired: May 15, 2005 (USA) and May 14, 2005 (Canada)

Charmed #156 (7.22) -  Something Wicca This Way Goes -  Season finale
With the Book of Shadows finally in his possession, Zankou (guest star Oded Feher) plans to open the Spiritual Nexus and take in the power of the Shadow. To divert Zankou's attention away from the Nexus, Piper (Holly Marie Combs), Phoebe (Alyssa Milano) and Paige (Rose McGowan) successfully goad him into coming after them instead. Using a spell from the Book of Shadows, Zankou steals Phoebe's premonition power, which enables him to anticipate and thwart their attacks. The sisters come to the realization that the only way to stop Zankou may be to sacrifice themselves. Meanwhile, Agent Keyes (guest star Glenn Morshower) from Homeland Security reveals to Inspector Sheridan (guest star Jenya Lano) his suspicions about the The Charmed Ones involvement with the supernatural. Sheridan volunteers to go into the Halliwell manor with a micro-video recorder and ends up blowing the sisters' secret wide open.
Dorian Gregory and Brian Krause also star. James L. Conway directed the episode, story by Brad Kern and Rob Wright, teleplay by Brad Kern.
First aired: May 22, 2005 (USA) and May 21, 2005 (Canada)