Sheep in the Big City is the best cartoon Cartoon Network has EVER made and you WILL watch it.
metaphor
sheep from sheep in the big city is a metaphor for being an immigrant, or maybe for being transgender if you squint hard enough
sheep is also a coming of age story, as he leaves his home life and "family" behind for independence despite them (it's just farmer john) clinging to him
the secret military organization is a metaphor for how much the military sucks