The movie reteams hard-charging veteran police detective James (Cube) with his sister's fiancé Ben (Hart), who was a security guard at the start of the first movie before saving the day and becoming a cop. The new movie takes place after Ben graduates from the police academy and is a rookie cop shadowing James on an undercover drug-sting operation to find the killer of Atlanta's port commissioner.
Ben's over-enthusiasm for action once again blows the operation. The cops not only lose $100,000 in money designated for use in a drug deal sting, but also lose track of a computer hacker named AJ (Ken Jeong), who works for a respected businessman named Antonio Pope (Benjamin Bratt) but flees to Miami after transferring large amounts of money from Pope's bank accounts to his own.
AJ had also heard Pope give the order to have a hitman shoot the port commissioner dead, so he is in double danger of being killed by the crime lord and his minions. The key to bringing Pope down for the murder and his smuggling plans is to find the decryption key for Pope's records, but they are on his personal laptop deep within his mansion.
The cops team up with AJ and a hard-charging female cop (Olivia Munn) to engage in a series of wild chases and disguises to find what they need. Indeed, it's a simple plot and has by-the-numbers twists that anyone familiar with the police comedy genre can see coming.
Yet "Ride Along 2" works much better than anticipated, and the reason for that is the ace comic chemistry between its stars, Ice Cube and Kevin Hart. They receive criticism from some African-Americans for being silly rather than serious movie heroes, but the humor has almost nothing to do with their race or anyone else's.
The interplay between them merely carries on the classic comedy tradition of Abbott and Costello and Dean Martin and Jerry Lewis, and it is frankly refreshing to see such good-natured comedy from African-American performers, when so much of that comedy scene is often reliant on coarse language and humor to succeed. In addition, the characters of James and Ben are positive role models despite their bending the rules; they always are determined to stop criminals, they are solidly middle-class, and one is about to get married and the other is shy, rather than womanizing as so many movie cops are.