CREATE TABLE table_2768 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

What is the name of the episode where the season number is 13?
SELECT "Title" FROM table_2768 WHERE "No. in season" = '13'
SELECT "Title" FROM "table_2768" WHERE "No. in season" = '13'