At the end of Season 6, it is Castle and Beckett's wedding day, but Castle is nowhere to be found. Beckett gets a call and arrives to the scene only to find his car in flames.
Fans are awaiting the Season 7 premiere on September 29.
The show's new executive producer David Amann told TV Line,
“We are as committed to their relationship as Castle and Beckett are — they are deeply in love and they have overcome a great many challenges already,” Amann says, “so whatever [has happened] is not going to tear them apart. If anything, it will make them stronger."