Bones
Bones rattled viewers by sewing up Season 4 with the three little words Brennan-Booth 'shippers never wanted to hear: "Who are you?" Has Booth emerged from his post-brain surgery coma with no memory of his partner in crime-solving? Capping an episode that existed purely on the pages of a book Bones was writing, the twist left many wishing they could "forget" the preceding 59 minutes.
Source: Here
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