The Best Party Ever (S01E20)

S01E01 My Best Friend S01E01 Playoff Habits S01E02 The Pieces on the Board S01E02 Cleo's Fair Share S01E03 Special Delivery S01E03 Blue Swan S01E04 The Stretch Run S01E04 A Ferry Tale S01E05 The First Round Monkey S01E05 And Bird Makes Three S01E06 Home Is Where the Fun Is S01E07 Clifford's Carnival S01E08 Clifford's Doggy Reunion S01E09 The Great Race S01E10 Tummy Trouble S01E11 Cleo Comes to Town S01E12 False Friends S01E13 Clifford and the Beanstalk S01E14 Itchy Patch S01E15 A New Friend S01E16 Stormy Weather S01E17 Circus Stars S01E18 Limelight Fright S01E19 To Catch a Bird S01E20 The Best Party Ever S01E21 Come Back, Mac S01E22 Boo! S01E23 Little Clifford S01E24 Welcome to Birdwell Island S01E25 Doing the Right Thing S01E26 The Dog Who Cried Woof S01E27 Leaf of Absence S01E28 Nobody's Perfect S01E29 Teacher's Pet S01E30 Islander of the Year S01E31 Clifford's Big Surprise S01E32 The Ears Have It S01E33 Tough Enough S01E34 Stars in Your Eyes S01E35 Mac's Secret Dog Club S01E36 The Dog Park S01E37 Fluffed Up Cleo S01E38 Team Spirit S01E39 Clifford on Parade S01E40 Follow the Leader