But there's only one way out of this.

Do you remember our escape route yes i'll take that as a no

I was talking about my secret tunnel

Keyhole Exit

Looks like you managed to cut off our only escape route

Secret Tunnel

Trap Door

Trapdoor

Yes, of course. The drainage canal. I think that empties out somewhere near the freight yard. If we're lucky, we can make our way out of the facility from there.