Rocky is one brave dog.

The 110-pound Labrador retriever and his owner jumped into icy waters to save two drowning girls in Canada's Edmonton on Sunday, the Calgary Herald reports.

"He's my hero, he saved me," Samara Sunshine told CTV News about the heroic dog and his owner.

Adam Shaw spotted sisters Krymzen, 10, and Samara, 9, in the North Saskatchewan River while hiking with his wife and dog nearby.

"I looked down to see one young girl floating in the river and her sister trying to pull her out," Shaw, 27, told CBC. He headed to the river and managed to get Krymzen out of the water but couldn’t reach Samara.  

"I said, 'Can you swim toward the ice?'" Shaw said recalling what he said to the terrified girl still in the icy river. "She said she couldn't move her arms, couldn't move her legs."

When Shaw stepped toward her, the ice crumbled beneath him and Rocky, plunging both into the river. The two managed to get back on shore and found the 9-year-old downriver, the Calgary Herald reports.

Shaw sent Rocky back into the frigid water and asked the girl to grab onto the dog’s leash. Samara was then pulled by the dog to the river’s icy bank, and Shaw helped pull the two to safety, according to the news outlet.

Firefighters met the girls on shore. Samara was “barely conscious and very hypothermic. She could barely talk,” Michael Tucker, spokesman for the Edmonton Fire Rescue Services, told the Ottawa Citizen. Now, both girls are reportedly doing fine, Cory Sunshine, the girls’ father told CBC.

Sunshine said his daughters were sledding in a nearby park while the family was readying Easter dinner, he told CBC. Edmonton authorities are still unclear on how the girls landed up on the ice, citing curious exploration as a potential factor, CTV News reports.

“It’s lucky that this citizen happened along when he did, because you’re not going to last very long in that cold water at this time of year,” District Fire Chief John Bower told the news outlet.

Shaw and Rocky’s actions aren’t surprising for those close to them.

"He's a terrific dog. He's very adventurous, always in and out of the water,” Shaw said about his 8-year-old dog. “I knew he could jump in the water and swim back no problem."

Shaw’s wife, Kelsey, praised her husband’s bravery.

"He would never let someone be in need and not help," she said. "It was nothing short of a miracle to be able to get to the other little girl."

The girls’ mother, Miranda Wagner, is grateful for Shaw’s heroic act and hopes to meet him.

“I would just hug him and tell him he's my hero,” Wagner told CTV News. "If he wasn't there, I wouldn't have my girls.”