CREATE TABLE table_60802 ("Episode" TEXT, "1 season" TEXT, "2 season" TEXT, "3 season" TEXT, "4 season" TEXT, "5 season" TEXT, "6 season" TEXT)

What is 5 Season, when 2 Season is '3 168 673 (2 April 2008)'?
SELECT "5 season" FROM table_60802 WHERE "2 season" = '3 168 673 (2 april 2008)'
SELECT "5 season" FROM "table_60802" WHERE "2 season" = '3 168 673 (2 april 2008)'