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CBS filed a temporary restraining order Thursday against ABC in an effort to prevent the network from airing the new reality show The Glass House, which CBS believes is a direct rip-off of its long-running hit Big Brother, Entertainment Weekly reports.

The Glass House, which is set to premiere on Monday, June 18, follows 14 contestants as they live together and compete for $250,000. Similar to Big Brother, contestants will go head-to-head in competitions and will be eliminated weekly. Unlike Big Brother, America will have the chance to vote, manipulating different outcomes within the house.

CBS to ABC: Don't even try to rip off Big Brother

According to a letter CBS lawyers sent to ABC last month, the new reality series is executive-produced by former Big Brother producer Kenny Rosen. At the time, Rosen was thought to be one of at least 15 other former Big Brother staff and crew working on Glass House, but now, that number is looking more like 27 or 28.

Reality TV's copycat fight: Can CBS stop ABC's Glass House?