Your TV flickers to life; a static covered man speaks from behind a voice filter. "Agent Puzzling, you are now active. Your need to collect your first mission papers. Look under the statue on your front porch for further coded instructions." You head out to the porch and find a statue of a sleeping dog that wasn't there yesterday. On the bottom, there is a sequence of letters:
What do you need to do?
Your instruction is four words of length 4, 2, 2 and 3, in that order.
Don't overthink it; notice all 26 letters are present.
The cipher is very simple; the key is key.