ABC has released a first look at the season finale of ABC's Rookie Blue and it will literally be explosive.

Marlo Returns As Andy & Sam Hit Relationship Snag

In a trailer the arguably overzealous parking attendant throws a sign at a car who had just sped out of the ramp, most likely without paying.

He's clearly upset and asks the duo what they're going to do about the car "ripping him off." He reveals it is the third one of the week considering the ramp gate is broken.

Chloe Not Ready To Call It Quits With Estranged Husband, Wes?

The already minimal issue was quickly overshadowed when a ground breaking explosion occurred from the building of the ramp. They quickly urge patrons to exit the building as quickly as possible, but Andy and Chloe don't get out fast enough when another explosion goes off with the ladies in very close range.

A synopsis posted on ABC for the upcoming episode reads, "Chloe and Andy are on scene dealing with a parking attendant who became irate after a car sped out of the garage without paying. While they're trying to calm him down, an explosion rocks the garage. As they rush inside to investigate and clear the building, there's another explosion! Will Chloe and Andy be OK?"

Also in the episode, Sam tries to take his relationship with Andy a step further when he gives her a key to his apartment. Well, he tries to anyway. While Sam is usually the one who tries to hold back, this time it was Andy who was afraid that moving too fast would ruin their relationship.

Check out the Rookie Blue season finale Thursday at 10/9c on ABC.

Tags: Rookie Blue ABC television