: Castle was taken on his wedding day because of an old school friend, Bilal, an ex-Al-Qaeda commander attempting to defect.
: Episode titled "Journey's End" .
While Castle is the most direct match for "S7E20 Sleeper," the following shows also have a 20th episode in their 7th seasons: [S7E20] Sleeper
: Episode titled "Changes" involves a lottery winner with partial paralysis. : Castle was taken on his wedding day
The "mystery" of Castle's missing months is finally untangled: [S7E20] Sleeper
: Bilal was nearly killed meeting his CIA contact and demanded someone famous and familiar to him to guarantee his safety for the next meeting.
: The urgency was due to a major imminent terror attack, meaning the CIA could not wait for Castle’s wedding to finish. Key Thematic Elements