Halifax Regional Police say a vehicle with a woman and child inside was stolen following a robbery in Spryfield earlier this week.
Officers were called to the Dollarama on Dentith Road at around 7 p.m. Tuesday.
They were told two men threatened employees before taking two cash drawers.
The men were seen running off in the direction of the No Frills.
When they reached the area of the grocery store, police say the pair, along with third man got into a parked vehicle.
A woman and child were inside at the time and bystanders tried to help out.
Police say two of the suspects got out of the vehicle but a third drove off with the woman and child.
"The suspect stopped a short time later and allowed them to leave the vehicle," HRP said in a news release. "The woman and child were not physically injured."
Officers spotted a suspect vehicle, but the driver refused to stop.
The vehicle was found abandoned in the area at around 8:20 p.m., and a K9 unit tracked the suspect to a residence where he was arrested.
The 37-year-old man is scheduled to appear in Halifax provincial court at a later date to face charges of robbery, dangerous operation of a conveyance, flight from a peace officer and possession of property obtained by crime under $5,000.
Additional charges are anticipated and police are still searching for the other two suspects.
Both were white men with thin builds.
The first is described as in his 30s and was wearing a grey jacket with a hood and a green Dollarama reusable bag on one of his feet.
The second was shorter than the first suspect and was wearing a black jacket with the hood up, something red, possibly a t-shirt, underneath the jacket and his face was covered.
Anyone with information or video from the area is asked to call police at 902-490-5020 or submit an anonymous tip through Crime Stoppers.