SPOILER ALERT: The story includes a few details about the Season 2 finale of CBS’ Watson . John Watson and Sherlock Holmes’ fates intertwined one last time in the Season 2 finale of Watson, which serves as a series finale as the CBS medical drama has been canceled . In the closer, as Watson ( Morris Chestnut ) traveled with Mary (Rochelle Aytes) to Baltimore to get surgery for the glioblastoma that had been causing his Sherlock visions all season, a disoriented Holmes — in the flesh — was admitted to the Holmes Clinic in Pittsburgh. When Watson got word, he abandoned his surgery plans and returned to treat his friend. He deducted the cause of Sherlock’s illness but the delay of his own life-saving surgery cost him, and Watson suffered a debilitating seizure. He eventually woke up and professed his love to Mary who reciprocated.…