Ever since their daughter was born, it was only a matter of time before Brennan (Emily Deschanel) and Booth (David Boreanaz) finally tied the knot. And while they do say "I do" in Season 9 in a TV wedding for the ages, it's not before an unforgettable proposal that involves the diabolical Christopher Pelant (Andrew Leeds), whose obsession with Brennan brings them closer than they've ever been. Of course, the couple's honeymoon in Buenos Aires turns into a busman's holiday when they help a detective investigate the murder of a Nazi war criminal. Back at the Jeffersonian, Angela (Michaela Conlin) and Hodgins (T.J. Thyne) discuss having another child; Sweets (John Francis Daley) takes a leave of absence; Cam (Tamara Taylor) is the victim of identity theft; Clark (Eugene Byrd) writes a novel; and Wendell (Michael Grant Terry) is jolted by news that could affect his future at the lab.

In Season 3 of this supernatural drama, Nick (David Giuntoli) deals with some surprising aftereffects of his zombie attack-and the outcome is more positive than he could have anticipated. Meanwhile, he works to rebuild his relationship with Juliette (Bitsie Tulloch), whose newfound knowledge of Nick's world leads to her being increasingly involved in his Grimm work. Monroe (Silas Weir Mitchell) asks Rosalee (Bree Turner) to marry him, but their impending nuptials raise concerns among their families about the appropriateness of a mixed-Wesen wedding, especially one that has a Grimm as best man. Meanwhile, Adalind (Claire Coffee) continues her fight to regain her powers, but with a baby on the way and an all-out war brewing between her and the royal family, she may have gotten in over her head.

Season 9 of the supernatural series begins with the fallout from heaven's angels descending to earth. Sam (Jared Padalecki) and Dean (Jensen Ackles) suddenly find themselves living in a world that is now inhabited by thousands of powerful, angelic beings, some of whom want them dead. The brothers then embark on a journey to reopen the gates of heaven. Meanwhile, Castiel (Misha Collins) struggles to survive without his powers and embarks on living as a human; Crowley (Mark Sheppard), the King of Hell, is kidnapped by Dean in order to find demons on earth; and Abaddon (Alaina Huffman), the Knight of Hell, reappears with plans to take over hell once and for all.