Philip runs into an alley away from the cop in episode 1x01 “Travelers”. In Marcy's memories, Vincent's goons drop Marcy in an alley and she wanders around until she runs into David. Back in the present day, Marcy meets up with David and kisses him in episode 2x10 “21C”. Marcy drops Simon off in the alley with a bag of supplies and her number in episode 2x11 “Simon”.
Source: bg_k — Twitter