He kept followers on Instagram updated while he made his way out of Ukraine.
Chmerkovskiy was in his native country working on a dance competition series when the Russian invasion broke out last week.
He spoke on Instagram Live Tuesday detailing what he witnessed on his way out of the war-torn country.
"It has turned into, into a David and Goliath of just massive proportions," Chmerkovskiy said in the Instagram Live post. "It's just reality. It's David and Goliath in reality. I feel like I'm in high school again in Brooklyn, and I feel like I'm in a hallway and I feel like I'm watching a little kid get beat up by a big kid."
The Ukrainian-American dancer praised Poland and its people for accepting Ukrainian refugees into their country during this troubling time.
He shared a post Tuesday morning showing he made it to Poland safely.
In a video he released Monday, Chmerkovskiy said he had been arrested in Kyiv.
"At one point I got arrested," he said. "But -- again -- all good. I promise. But that was probably the least traumatizing moment in this whole thing, as far as Ukraine is concerned, but for me it was just a reality check."
He left Ukraine shortly after the arrest and he documented his trek to the Polish border.
He was filming a project called "World of Dance U-A" in Ukraine when the invasion began.