CREATE TABLE table_54649 ("Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" TEXT)

what is the title of the episode with the production code of ad1a22?
SELECT "Title" FROM table_54649 WHERE "Production code" = 'ad1a22'
SELECT "Title" FROM "table_54649" WHERE "Production code" = 'ad1a22'