A massive rip in the fabric of space and time leaves Space command's deep space fleet stuck on the other side of the rift. Meanwhile alien ships from another dimension arrive on Earth en masse on the other side of the divide. Captain Maguire, a decorated graduate of the Space command academy, whose unorthodox approach to duty is also his strength in a desperate bid to defend commands his starship the Sandawana into the rift in a desperate bid to defend Earth. 
Arriving on Earth he initiates the counter attack to repel the alien ships from Earth.  Other starships of  Space command's deep space fleet arrive on Earth to support the Sandawana's fight against the alien ships. Under the vicious barrage of lasers and missiles from Space command's deep space fleet, the alien ships begin to withdraw to their own dimension. But as they retreat the aliens launch a ground operation and take a senior Space fleet officer captive. 
Captain Maguire is forced to pursue the aliens taking the fight to their home world.

Interdimensional, a starship trilogy

"Is everyone ok?", asked captain Maguire raising his voice just above a whisper as he crouched in the dark amid the fading light. 


"Yes captain", replied captain Lucinda urgently whispering back while crouching beside him in the long grass. "I did a head count, everyone is fine, there are no reported injuries. 


"Good, it's time to get the hell out of here", whispered captain Maguire, wiping out his communicator from his utility belt. 


"Shuttle return!", ordered captain Maguire raising his voice just above a whisper. 


"Sorry captain, I am currently unable to comply with that order", came the prompt response over the communicator. 


"What do you mean, you are unable to comply!?", asked captain Maguire whispering urgently into the communicator. 


"I am attempting to lose a pursuing flock of angry terraductus. I 'm afraid I can not turn back to your position at present", explained the shuttle pilot. 


Another kind