Plot Summary:Sand Castles in the Sand: SpongeBob and Patrick decide to celebrate their friendship by enjoying a day at the beach together. But what starts out as a fun day for the two best buddies quickly turns into all-out war when SpongeBob and Patrick use their sandcastles to battle each other. Shell Shocked: Gary desperately needs a new shell, but all the shells on the market are either too expensive or too fragile. And when SpongeBob tries to find other alternatives to real shells, nothing else seems to work. Will SpongeBob ever be able to find the perfect new shell for Gary?