We Bare Bears (2015)

Season 4: Episode 36

The Baby Bears find themselves at the beach and decide to build a luxurious sandcastle as their new home. Panda falls in love for the first time with a girl named Darla (Vivienne Rutherford) who takes an interest in their home, but soon they have to protect it from her vengeful older sisters and cousins who have come to take Darla back.